Within what looks like an ordinary canal house is an entire Catholic church. Ons' Lieve Heer op Solder (Our Dear Lord in the Attic) was built in the mid-1600s in defiance of the Calvinists. Inside you'll see labyrinthine staircases, rich artworks, period decor and the soaring, two-storey church itself.
Museum Ons' Lieve Heer op Solder
Top choice in Medieval Centre & Red Light District