Hidden Basement
When this tenant moved into her new apartment, she found an extra room in it. Just outside of her bathroom there was a trap door and inside were tools. The stairs in it led to an extra room for storage.
Mouse Holes
The people who moved into this house, built in 1741, discovered several small holes that had once been home to mice. The holes were made by mice chewing into the walls and looks like it came out of a cartoon.