The magnificent and impressive Valdislav Hall was built in the 16th century and is best known for its vaulted ceiling. The entire hall was built in Gothic style. During the cold winter days of the Middle Ages, spear fights were fought here.
The governor's room, actually connected to the door with the hall, was the place where the Thirty Years War began in 1618. The reason was the "second throwing from the window" - the pushing of two members of the Catholic Council through the window to the canal below.
Today the hall is used for special parliamentary sessions where Czech presidents are elected.
At the far end of the hall, you'll see the Chapel of All Saints. It was designed by Petr Parléř, after the fire of 1541 destroyed many of the fortress buildings. The chapel was rebuilt in the Renaissance style and boasts a number of examples of 17th century German paintings.
On the second floor added to the hall is the archive of the palace (once the royal archives) where Czech documents of historical significance are kept.
Most parts of the palace are open to tourists, and you will find the National Gallery, a collection of Baroque artworks, an exhibition dedicated to Czech history, a Prague Castle photo gallery and more. Every hour there is an exchange of guards. At 12:00 pm, the exchange includes all the guards in a full lineup accompanied by an orchestra and trumpet.