The former seat of the King and is now the seat of the Czech president. This is Prague's number one tourist attraction so expect huge crowds and possibly long lines, especially during high tourist season. Your best bet is to come early, as soon as the castle opens. Similar to other royal palaces, there is an hourly changing of the guard ceremony. At noon, the ceremony includes fanfare at a flag ceremony in the first courtyard.

Prague Castle is a castle complex in Prague, Czech Republic serving as the official residence and workplace of the president of the Czech Republic. Built in the 9th century, the castle has long served as the seat of power for kings of Bohemia, Holy Roman emperors, and presidents of Czechoslovakia. As such, the term "Prague Castle" or simply "Hrad" are often used as metonymy for the president and his staff and advisors. The Bohemian Crown Jewels are kept within a hidden room inside it. According to the Guinness Book of Records, Prague Castle is the largest ancient castle in the world, occupying an area of almost 70,000 square metres , at about 570 metres in length and an average of about 130 metres wide. The castle is the most visited tourist attraction in the Czech Republic. In 2024, the castle attracted 2.59 million visitors.