The Old Church is a graveyard
If you've ever been inside the Red Light District's Mama “church” (now more likely to be filled with partiers or art and music lovers than worshipers), you can't help but be awed by its, well, awesomeness. For a Calvinist joint, it's sure got some ornate pulpit swag. So, it can be easy to miss the floors, full of carvings. Carvings of names. Of dead people. 2,500 grave stones, to be precise, with 10,000 bodies buried beneath.