diff --git a/Core_Nodes/configs/historical_monuments_config.json b/Core_Nodes/configs/historical_monuments_config.json
new file mode 100644
index 0000000..766037f
--- /dev/null
+++ b/Core_Nodes/configs/historical_monuments_config.json
@@ -0,0 +1,117 @@
+{
+    "historical_monuments": {
+        "monuments": [
+            "Pyramids of Giza",
+            "Parthenon",
+            "Colosseum",
+            "Great Wall of China",
+            "Taj Mahal",
+            "Angkor Wat",
+            "Petra",
+            "Machu Picchu",
+            "Notre-Dame Cathedral",
+            "Hagia Sophia",
+            "Stonehenge",
+            "Acropolis",
+            "Palace of Versailles",
+            "Forbidden City",
+            "Temple of Luxor"
+        ],
+        "architectural_styles": [
+            "Classical Greek",
+            "Roman Imperial",
+            "Gothic",
+            "Renaissance",
+            "Baroque",
+            "Byzantine",
+            "Ancient Egyptian",
+            "Islamic",
+            "Romanesque",
+            "Medieval"
+        ],
+        "eras": [
+            "Ancient Egyptian Era",
+            "Classical Antiquity",
+            "Middle Ages",
+            "Renaissance Period",
+            "Age of Enlightenment",
+            "Victorian Era",
+            "Bronze Age",
+            "Iron Age",
+            "Imperial Period",
+            "Golden Age"
+        ],
+        "settings": [
+            "ancient city",
+            "royal court",
+            "temple complex",
+            "sacred grounds",
+            "imperial palace",
+            "medieval town",
+            "ceremonial plaza",
+            "ancient harbor",
+            "fortress walls",
+            "holy sanctuary"
+        ],
+        "artistic_styles": [
+            "historical painting",
+            "architectural illustration",
+            "period-accurate drawing",
+            "classical art",
+            "documentary style",
+            "archaeological rendering",
+            "academic art",
+            "historical realism",
+            "architectural sketch",
+            "documentary photography"
+        ],
+        "techniques": [
+            "detailed architectural drawing",
+            "historical perspective",
+            "precise architectural rendering",
+            "period-accurate illustration",
+            "structural detail emphasis",
+            "archaeological documentation",
+            "architectural composition",
+            "historical reconstruction",
+            "monumental scale representation",
+            "architectural preservation"
+        ],
+        "lighting": [
+            "golden hour",
+            "dramatic sunset",
+            "dawn light",
+            "moonlight",
+            "natural daylight",
+            "stormy sky",
+            "ceremonial torchlight",
+            "ancient sunlight",
+            "atmospheric dusk",
+            "historical lighting"
+        ],
+        "atmosphere": [
+            "mystical fog",
+            "ancient dust",
+            "ceremonial smoke",
+            "sacred incense",
+            "morning mist",
+            "historical ambiance",
+            "timeless atmosphere",
+            "ancient air",
+            "period atmosphere",
+            "historical environment"
+        ],
+        "cloud_formations": [
+            "cumulus clouds",
+            "dramatic storm clouds",
+            "cirrus wisps",
+            "golden hour clouds",
+            "dawn mist",
+            "sunset clouds",
+            "stratocumulus formations",
+            "weather patterns",
+            "atmospheric clouds",
+            "celestial formations"
+        ]
+    }
+}
diff --git a/Core_Nodes/mega_prompt_V3.py b/Core_Nodes/mega_prompt_V3.py
index ad0cc21..b0a65dc 100644
--- a/Core_Nodes/mega_prompt_V3.py
+++ b/Core_Nodes/mega_prompt_V3.py
@@ -97,6 +97,7 @@ class ThemeRegistry:
             "chinese_new_year": ChineseNewYearThemeHandler,
             "spectral_mist": SpectralMistThemeHandler,
             "vintage_1800s_photography": Vintage1800sPhotographyHandler,
+            "historical_monuments": HistoricalMonumentsHandler,  # Fixed reference
         }
         
         self.handlers = {
@@ -183,7 +184,8 @@ class ThemeRegistry:
             "🏠 Village World": "village_world",
             "📸 Vintage 1800s Photography": "vintage_1800s_photography",
             "👴 Vintage Anthropomorphic": "vintage_anthropomorphic",
-            "🎨 Watercolor": "watercolor"
+            "🎨 Watercolor": "watercolor",
+            "🏛️ Historical Monuments": "historical_monuments",
         }
         self.theme_mappings = emoji_mappings
     
diff --git a/Core_Nodes/theme_handlers/__init__.py b/Core_Nodes/theme_handlers/__init__.py
index 52b86cf..f7f848e 100644
--- a/Core_Nodes/theme_handlers/__init__.py
+++ b/Core_Nodes/theme_handlers/__init__.py
@@ -73,6 +73,7 @@ from .urban_tag_handler import UrbanTagThemeHandler
 from .village_world_handler import VillageWorldThemeHandler
 from .vintage_anthropomorphic_handler import VintageAnthropomorphicThemeHandler
 from .vintage_1800s_photography_handler import Vintage1800sPhotographyHandler
+from .historical_monuments_handler import HistoricalMonumentsHandler
 
 # Holiday and Event Handlers
 from .chinese_new_year_handler import ChineseNewYearThemeHandler
@@ -128,7 +129,7 @@ __all__ = [
     'SelfieThemeHandler', 'StreetFoodKebabThemeHandler',
     'UnderwaterCivilizationThemeHandler', 'UrbanTagThemeHandler',
     'VillageWorldThemeHandler', 'VintageAnthropomorphicThemeHandler',
-    'Vintage1800sPhotographyHandler',
+    'Vintage1800sPhotographyHandler', 'HistoricalMonumentsHandler',
     
     # Holiday and Event Handlers
     'ChineseNewYearThemeHandler', 'ChristmasThemeHandler',
@@ -139,5 +140,5 @@ __all__ = [
     
     # Cinema and Media Handlers
     'CinemaStudioThemeHandler', 'InstagramThemeHandler',
-    'InstagramLifestyleThemeHandler'
+    'InstagramLifestyleThemeHandler', 'HistoricalMonumentsHandler'
 ]
diff --git a/Core_Nodes/theme_handlers/historical_monuments.py b/Core_Nodes/theme_handlers/historical_monuments.py
new file mode 100644
index 0000000..3f2e142
--- /dev/null
+++ b/Core_Nodes/theme_handlers/historical_monuments.py
@@ -0,0 +1,51 @@
+from typing import Dict
+from .base_handler import BaseThemeHandler
+
+class HistoricalMonumentsHandler(BaseThemeHandler):  # Keep this exact name
+    """Handler for historical monuments theme generation."""
+    
+    def generate(self, custom_subject: str = "",
+                custom_location: str = "",
+                include_environment: str = "yes",
+                include_style: str = "yes",
+                include_effects: str = "yes") -> Dict[str, str]:
+        components = {}
+        
+        # Subject generation
+        if custom_subject:
+            components["subject"] = (
+                f"((majestic {custom_subject})), "
+                f"((architectural masterpiece)), ((monumental scale))"
+            )
+        else:
+            monument = self._get_random_choice("historical_monuments.monuments")
+            architectural_style = self._get_random_choice("historical_monuments.architectural_styles")
+            components["subject"] = (
+                f"((majestic {monument})), ((built in {architectural_style} style))"
+            )
+            
+        # Environment
+        if include_environment == "yes":
+            era = self._get_random_choice("historical_monuments.eras")
+            setting = self._get_random_choice("historical_monuments.settings")
+            components["environment"] = (
+                f"in ((historic {setting})), during ((the {era}))"
+            )
+            
+        # Style
+        if include_style == "yes":
+            style = self._get_random_choice("historical_monuments.artistic_styles")
+            technique = self._get_random_choice("historical_monuments.techniques")
+            components["style"] = (
+                f"((rendered in {style})), ((using {technique}))"
+            )
+            
+        # Effects
+        if include_effects == "yes":
+            lighting = self._get_random_choice("historical_monuments.lighting")
+            atmosphere = self._get_random_choice("historical_monuments.atmosphere")
+            components["effects"] = (
+                f"with ((dramatic {lighting})), ((atmospheric {atmosphere}))"
+            )
+            
+        return components
diff --git a/Core_Nodes/theme_handlers/historical_monuments_handler.py b/Core_Nodes/theme_handlers/historical_monuments_handler.py
new file mode 100644
index 0000000..f59f331
--- /dev/null
+++ b/Core_Nodes/theme_handlers/historical_monuments_handler.py
@@ -0,0 +1,63 @@
+from typing import Dict
+from .base_handler import BaseThemeHandler
+
+class HistoricalMonumentsHandler(BaseThemeHandler):
+    """Handler for historical monuments theme generation."""
+    
+    def generate(self, custom_subject: str = "",
+                custom_location: str = "",
+                include_environment: str = "yes",
+                include_style: str = "yes",
+                include_effects: str = "yes") -> Dict[str, str]:
+        components = {}
+        
+        # Subject generation
+        if custom_subject:
+            components["subject"] = (
+                f"((majestic {custom_subject})), "
+                f"((architectural masterpiece)), ((monumental scale)), "
+                f"((historical architecture)), ((grand structure)), "
+                f"((landscape photography excellence)), ((perfect natural composition))"
+            )
+        else:
+            monument = self._get_random_choice("historical_monuments.monuments")
+            architectural_style = self._get_random_choice("historical_monuments.architectural_styles")
+            components["subject"] = (
+                f"((majestic {monument})), ((built in {architectural_style} style)), "
+                f"((monumental scale)), ((historical architecture)), "
+                f"((landscape photography excellence)), ((perfect natural composition))"
+            )
+            
+        # Environment
+        if include_environment == "yes":
+            era = self._get_random_choice("historical_monuments.eras")
+            setting = self._get_random_choice("historical_monuments.settings")
+            cloud_formation = self._get_random_choice("historical_monuments.cloud_formations")
+            components["environment"] = (
+                f"in ((historic {setting})), during ((the {era})), "
+                f"with ((subtle {cloud_formation})), ((environmental authenticity)), "
+                f"((natural atmosphere)), ((environmental artistry))"
+            )
+            
+        # Style
+        if include_style == "yes":
+            style = self._get_random_choice("historical_monuments.artistic_styles")
+            technique = self._get_random_choice("historical_monuments.techniques")
+            components["style"] = (
+                f"((rendered in {style})), ((using {technique})), "
+                f"((National Geographic style)), ((professional landscape photography)), "
+                f"((award-winning landscape photograph)), ((8k resolution)), "
+                f"((sharp details)), ((rich textures))"
+            )
+            
+        # Effects
+        if include_effects == "yes":
+            lighting = self._get_random_choice("historical_monuments.lighting")
+            atmosphere = self._get_random_choice("historical_monuments.atmosphere")
+            components["effects"] = (
+                f"with ((dramatic {lighting})), ((atmospheric {atmosphere})), "
+                f"((natural water reflections)), ((natural color grading)), "
+                f"((pristine conditions)), ((perfect exposure))"
+            )
+            
+        return components
diff --git a/Docs/Theme_Creation_Guide.md b/Docs/Theme_Creation_Guide.md
new file mode 100644
index 0000000..d0f14aa
--- /dev/null
+++ b/Docs/Theme_Creation_Guide.md
@@ -0,0 +1,263 @@
+# Theme_Creation_Guide
+
+This file is here to help you to create a new theme for the megaprompts nodes collection.
+If you need to create a new theme, start by copying existing working theme.
+
+## Important Notes
+- Theme handlers should be placed directly in `theme_handlers/` directory (not in subdirectories)
+- All themes must have matching config and handler names
+- Always include proper error handling and fallbacks
+
+## Directory Structure
+
+```
+ComfyUI_Isulion/
+└── Core_Nodes/
+    ├── theme_handlers/
+    │   └── your_theme_handler.py    # Direct in handlers directory
+    └── configs/
+        └── your_theme_config.json
+```
+
+## Required Files
+
+1. Theme Handler (`theme_handlers/your_theme_handler.py`)
+2. Configuration File (`configs/your_theme_config.json`)
+3. Entry in `mega_prompt_V3.py`
+
+## Implementation Steps
+
+### 1. Theme Handler Creation
+```python
+from .base_handler import BaseThemeHandler
+
+class YourThemeHandler(BaseThemeHandler):
+    def __init__(self, config):
+        super().__init__(config)
+        self.theme_config = config.get_config("your_theme")
+        if not self.theme_config:
+            raise ValueError("Missing your_theme configuration")
+    
+    def validate_config(self):
+        """Validate theme configuration"""
+        required_sections = ['primary_elements', 'settings', 'styles']
+        for section in required_sections:
+            if section not in self.theme_config:
+                raise ValueError(f"Missing required section: {section}")
+            if not isinstance(self.theme_config[section], list):
+                raise ValueError(f"Section {section} must be a list")
+    
+    def get_fallback_value(self, section):
+        """Provide fallback values for missing sections"""
+        fallbacks = {
+            'primary_elements': ['default element'],
+            'settings': ['natural setting'],
+            'styles': ['realistic style']
+        }
+        return fallbacks.get(section, [])
+```
+
+### 2. Create Config File
+```json
+{
+    "your_theme": {
+        "primary_elements": ["..."],
+        "settings": ["..."],
+        "styles": ["..."],
+        "effects": ["..."],
+        "atmosphere": ["..."],
+        "ambiance": ["..."]
+    }
+}
+```
+
+### 3. Register Theme
+```python
+# In mega_prompt_V3.py
+def _init_handlers(self):
+    handler_classes = {
+        # ...existing code...
+        "your_theme": YourThemeHandler,
+    }
+
+def _init_mappings(self):
+    emoji_mappings = {
+        # ...existing code...
+        "🎨 Your Theme": "your_theme",
+    }
+```
+
+## Example Implementation: Historical Monuments Theme
+
+Here's a working example of how to create a new theme:
+
+### 1. Theme Handler Creation
+Place in `theme_handlers/historical_monuments_handler.py`:
+```python
+from typing import Dict
+from .base_handler import BaseThemeHandler
+
+class HistoricalMonumentsHandler(BaseThemeHandler):
+    """Handler for historical monuments theme generation."""
+    
+    def generate(self, custom_subject: str = "",
+                custom_location: str = "",
+                include_environment: str = "yes",
+                include_style: str = "yes",
+                include_effects: str = "yes") -> Dict[str, str]:
+        components = {}
+        
+        # Subject generation with proper weighting
+        if custom_subject:
+            components["subject"] = (
+                f"((majestic {custom_subject})), "
+                f"((architectural masterpiece)), ((monumental scale))"
+            )
+        else:
+            monument = self._get_random_choice("historical_monuments.monuments")
+            components["subject"] = f"((majestic {monument})), ((architectural masterpiece))"
+        
+        # Add optional components
+        if include_environment == "yes":
+            era = self._get_random_choice("historical_monuments.eras")
+            setting = self._get_random_choice("historical_monuments.settings")
+            components["environment"] = f"in ((historic {setting})), during ((the {era}))"
+            
+        # ... rest of implementation
+```
+
+### 2. Config Structure
+Place in `configs/historical_monuments_config.json`:
+```json
+{
+    "historical_monuments": {
+        "monuments": ["Pyramids of Giza", "Parthenon", "Colosseum", ...],
+        "eras": ["Ancient Egyptian Era", "Classical Antiquity", ...],
+        "settings": ["ancient city", "royal court", ...],
+        "artistic_styles": ["historical painting", "architectural illustration", ...],
+        "lighting": ["golden hour", "dramatic sunset", ...],
+        "atmosphere": ["mystical fog", "ancient dust", ...]
+    }
+}
+```
+
+### 3. Theme Registration
+Add to `mega_prompt_V3.py`:
+```python
+def _init_handlers(self):
+    handler_classes = {
+        // ...existing code...
+        "historical_monuments": HistoricalMonumentsHandler,
+    }
+
+def _init_mappings(self):
+    emoji_mappings = {
+        // ...existing code...
+        "🏛️ Historical Monuments": "historical_monuments",
+    }
+```
+
+## Prompt Structure
+
+### Component Guidelines
+1. Subject (Required)
+```python
+f"({main_element:1.3}), ({supporting_detail:1.2}), {composition}"
+```
+
+2. Environment (Optional)
+```python
+f"in {setting}, during {time}, with {atmosphere}"
+```
+
+3. Style (Optional)
+```python
+f"{style}, {technique}, ({additional_elements:1.1})"
+```
+
+4. Effects (Optional)
+```python
+f"((main effect:1.2)), ((supporting effects)), ((enhancements))"
+```
+
+### Configuration Validation
+
+1. Required Structure:
+```json
+{
+    "your_theme": {
+        "primary_elements": ["at least 3 items"],
+        "settings": ["at least 3 items"],
+        "styles": ["at least 3 items"]
+    }
+}
+```
+
+2. Validation Rules:
+- All sections must be lists
+- Lists should contain unique items
+- No empty strings allowed
+- Minimum 3 items per required section
+
+## Testing Checklist
+
+- [ ] Handler loads without errors
+- [ ] Config file is properly formatted
+- [ ] All required sections exist in config
+- [ ] Prompt generation works with:
+  - Default settings
+  - Custom subjects
+  - Different component combinations
+- [ ] Weights are balanced
+- [ ] Error handling works
+
+## Common Issues & Solutions
+
+1. Theme not appearing:
+   - Check handler is in correct directory
+   - Verify registration in mega_prompt_V3.py
+   - Ensure config key matches handler
+
+2. Missing config errors:
+   - Add all required sections
+   - Match config key with handler
+   - Include fallback values
+
+3. Generation issues:
+   - Check component building methods
+   - Verify prompt structure
+   - Test weight values
+
+## Best Practices
+
+1. Config Organization:
+   - Use clear category names
+   - Include 5-10 items per category
+   - Group related elements
+
+2. Error Handling:
+   - Validate configurations
+   - Provide fallbacks
+   - Clear error messages
+
+3. Naming Conventions:
+   - Use snake_case for internal names
+   - Clear, descriptive display names
+   - Include relevant emoji
+
+## Additional Best Practices
+
+1. Component Organization:
+   - Group related elements in config
+   - Use clear, descriptive section names
+   - Include 10-15 items per category for variety
+
+2. Prompt Structure:
+   - Use double parentheses for emphasis ((like this))
+   - Keep weights balanced
+   - Group related concepts together
+
+3. Testing:
+   - Test with both custom and default subjects
+   - Verify all optional components work
+   - Check prompt generation with different combinations