Project Castle: Zamki i Pałace is a comprehensive travel and navigation application designed specifically for exploring Poland's rich historical sites. This free app features an interactive map that allows users to discover castles, palaces, and manors throughout the country. The search function includes filters to help users find nearby attractions or those in specific regions, making it an essential tool for both weekend travelers and history enthusiasts planning larger trips.

In addition to its mapping capabilities, Project Castle offers a check-in feature that rewards users with unique stamps and points for visiting various landmarks. Travelers can compete in a ranking system that showcases the top 100 explorers, encouraging engagement and exploration. The app also allows users to create personalized itineraries, save favorite locations, and access a wealth of historical information, images, and practical details about thousands of sites, making it a valuable companion for anyone interested in Poland's historical heritage.