Houska Castle is an early Gothic castle in the municipality of Blatce. It is one of the best preserved castles of the period. Some notable features of the castle include a predominantly Gothic chapel, green chamber with late-Gothic paintings, and a knight's drawing room.
Folklore considers this castle to cover one of the gateways to Hell, built to prevent demons (trapped in lower levels) from reaching the rest of the world.
Houska Castle was built in the second half of the 13th century probably on the orders of Bohemian ruler Ottokar II of Bohemia during his reign (1253–78) to serve as an administration center from which the extensive royal estates could be managed. Later on, it passed to the hands of the aristocracy, frequently passing from the ownership of one to another. The castle was built in an area of forests, swamps and mountains with no external fortifications, no source of water except for a cistern to collect rainwater, no kitchen, far from any trade routes, and with no occupants at its time of completion. From 1584 to 1590, it underwent Renaissance-style modifications, losing none of its fortress features as it looks down from a steep rocky cliff. In the 18th century, it stopped serving as a noble residence and fell into a state of disrepair before being renovated in 1823. In 1897, it was purchased by Princess Hohenlohe and in 1924, the times of the First Republic, bought by the President of Škoda, Josef Šimonek.
During World War II, the Wehrmacht occupied the castle until 1945. The Nazis were said to have conducted experiments into the occult. As of early 2020, the castle was open to the public and had been since 1999. Tourists may visit the chapel with fading frescoes and murals 'including pictures of demon-like figures and animal-like beings'.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.