Add Castlemap MCP server to README

README.md

@@ -2285,6 +2285,7 @@ Location-based services and mapping tools. Enables AI models to work with geogra
 - [bamwor-dev/bamwor-mcp-server](https://github.com/bamwor-dev/bamwor-mcp-server) [![bamwor-mcp-server MCP server](https://glama.ai/mcp/servers/bamwor-dev/bamwor-mcp-server/badges/score.svg)](https://glama.ai/mcp/servers/bamwor-dev/bamwor-mcp-server) 📇 ☁️ - World geographic data for AI agents. 261 countries with 20+ statistics and 13.4M cities with population, coordinates, and timezone. Powered by Bamwor API.
 - [baphometnxg/aloha-fyi-mcp](https://github.com/baphometnxg/aloha-fyi-mcp) [![baphometnxg/aloha-fyi-mcp MCP server](https://glama.ai/mcp/servers/baphometnxg/aloha-fyi-mcp/badges/score.svg)](https://glama.ai/mcp/servers/baphometnxg/aloha-fyi-mcp) 📇 ☁️ - First dedicated Hawaii tourism MCP server. 2,583 bookable tours from Viator, GetYourGuide, Klook, and Groupon, plus 579 events across 70+ venues on Oahu, Maui, Big Island, and Kauai. Results ship with affiliate booking links. Hosted Streamable HTTP endpoint — no install required. Powered by [aloha.fyi](https://aloha.fyi).
 - [briandconnelly/mcp-server-ipinfo](https://github.com/briandconnelly/mcp-server-ipinfo) 🐍 ☁️  - IP address geolocation and network information using IPInfo API
+- [Castlemap](https://thecastlemap.com/mcp) ☁️ - Query 2,400 castles, fortresses and palaces across 131 countries (coordinates, founding dates, Wikipedia summaries) from the open CC0 Castlemap dataset built on Wikidata.
 - [cqtrinv/trinvmcp](https://github.com/cqtrinv/trinvmcp) 📇 ☁️ - Explore French communes and cadastral parcels based on name and surface
 - [cturkieh/france-data-mcp](https://github.com/cturkieh/france-data-mcp) [![cturkieh/france-data-mcp MCP server](https://glama.ai/mcp/servers/cturkieh/france-data-mcp/badges/score.svg)](https://glama.ai/mcp/servers/cturkieh/france-data-mcp) 📇 ☁️ 🏠 - French territorial intelligence MCP — cross-references public registries (FINESS healthcare facilities, RPPS health professionals, INSEE companies, IGN geocoding) for multi-source agentic reasoning over French open data.
 - [devilcoder01/weather-mcp-server](https://github.com/devilcoder01/weather-mcp-server) 🐍 ☁️ - Access real-time weather data for any location using the WeatherAPI.com API, providing detailed forecasts and current conditions.
@@ -3459,4 +3460,4 @@ Now Claude can answer questions about writing MCP servers and how they work
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