Museum Ons' Lieve Heer op Solder

Museum Ons' Lieve Heer op Solder is a former hidden church, located in the inner city of Amsterdam, on the corner of the Oudezijds Voorburgwal and the Heintje Hoekssteeg. The building is listed in the 'Top 100 of the Rijksdienst voor de Monumentenzorg' from 1990. The former hidden church serves as a museum and is used (again) for Roman Catholic worship. Marriages are blessed there and two midnight masses are held every Christmas Eve. Every first Sunday of the months of October through April a Holy Mass takes place, graced with singing and organ playing.