The castle tower is a small castle in the Czech Republic, which is also called Český Krumlov. In Český Krumlov it is known as the northern bastion and the witch's tower. The Nazis also used it as a prison. 

It was built in the 15th century by Vítězslav of Lobkowitz, patron of one of the most famous Czech artists, especially for the castle architect Jakub Parléř. The purpose of this building was to provide protection against attacks by invaders coming from the north. The tower is accessible only on foot and offers a beautiful view of Český Krumlov. The building has been protected by law as a cultural monument for many years.

Rising from the rock

The tower is two-thirds surrounded by the residential palace of Hrádek, resting on a rock rising steeply above the Latran sub-castle and the flow of the Vltava River. The purpose of this building was to provide protection against attacks by raiders coming from the north. 

Most towering tower 

The six-storey tower of Český Krumlov Castle is located on the northern side of the castle grounds. During World War II, the tower lost its military function and was converted into a warehouse. The inner staircase was also destroyed and access to it was made possible by an external staircase. After 1950, it housed the technical facilities related to water management and heating of the castle grounds. The tower has its own spirit, it is full of history, a unique view of the city and its surroundings. The tower has always been a symbol of Český Krumlov and Karel Čapek himself called it "the most towering tower".