Construction of this house dates back to 1592, but it didn’t acquire its trademark slant until 1718, when the structure was rebuilt using unseasoned green oak. Sure it’s slanted, but what really makes the house stand out is that its basement had a secret passage to Windsor Castle, one of the official residences of the U.K.’s royal family. The passage was allegedly used for trysts between King Charles and a mistress, as well as for running supplies to the castle’s kitchen. The passageway has since been sealed off. Through the centuries, the crooked house has been home to various businesses, including a brewery and jewelry shop. It is now a restaurant.