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:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.