Ons' Lieve Heer op Solder

This guide follows Jan Hartman, a Catholic stockbroker in 1663 Amsterdam, after the city's Protestant council bans public Catholic worship and confiscates every church. It traces how he buys this canal house and the two narrow ones beside it, then quietly joins their attics into a single space over two years of work. Worshippers reached it through a door disguised as a living-room wall panel and a staircase steep enough to feel like a ladder.