Gateway to hell ?!

Houska Castle is located in the forests north of Prague. The sole reason to build this castle was to close the gateway to hell! It is said that underneath the castle is a bottomless pit filled with demons. In the 1930s, the Germany soldiers conducted experiments in the castle of the occult variety. Years later upon its renovation, skeletons of several Germany Officers were discovered. Many different types of ghosts are seen around the castle, including a giant bulldog, a frog, a human, a woman in old dress, and most spooky of all, a headless black horse.