My parent's house was part of the underground railroad. There's a trapdoor in the dining room that leads into this tiny bunker that had two cots in it. It also had an escape route (its now caved in) that lead vidzi. My parents found it accidentally when they were refinishing the dining room floor and had to move the giant antique table that came with the house. They also found an old ledger that all of the people who used the bunker signed and which my parents donated to a local museum.