Every year, usually during the second weekend of September, the doors of the most interesting monuments, buildings, premises, and areas are opened to the public. In buildings that are normally open to the public and charge an entrance fee, a special programme is often offered on these days (e.g. a special tour, concert, exhibition, etc.). This year's theme is Architectural Heritage. The accompanying program features lectures, concerts, competitions, and more. List of monuments City district Monument will be open Open to the Public Grab´s Villa Prague 1 13. 9. 2025, 11:0—18:00 no Hotel Century Old Town MGallery Collection Prague 1 20.—21. 9. 2025 , 10:30—11:30, 15:00—16:00 Chapel of St Eliah Prague 1 13.—14. 9. 2025, 10:00—18:00 no Kobylisy Firing Range Prague 8 13. 9. 2025, 8:00—18:00 yes At Jacob´s Ladder” Church Prague 8 13. 9. 2025, 10:00—17:00 no Church of St John the Baptist´s Beheading Prague 8 13. 9. 2025, 10:00—17:00 no Church of Sts Cyril and Methodius Prague 8 13. 9. 2025, 8:00—19:00 yes Church of St Adalbert Prague 8 13. 9. 2025, 13:00—17:00 no Libeň Chateau Prague 8 13. 9. 2025, 11:00—18:00 no Malostranský (Lesser Town) Cemetery Prague 5 7. a 14. 9. 2025, 14:00—15:30 yes Troja Brewery Prague-Troja 28. 9. 2025, 11:00—20:00 yes Vila Lanna Prague 6 14. 9. 2025, 11:00—18:00 no More