St. Vitus Cathedral, also known as St. Vitus Cathedral at Prague Castle, is a Gothic cathedral located within the Prague Castle complex in the Czech Republic. The cathedral is one of the most significant landmarks in the country and is considered one of the best examples of Gothic architecture in the world.

Construction of the cathedral began in the 14th century and was completed in the late 14th century. The cathedral was named after St. Wenceslas, the patron saint of the Czech people, and it is said that his remains are kept within the cathedral. The cathedral underwent several renovations and restorations over the centuries, including after the Hussite Wars in the 15th century and after a fire in the late 19th century.

The cathedral is known for its stunning stained-glass windows, which were created in the 20th century, and its impressive main portal, which is decorated with sculptures and carvings of biblical scenes. The interior of the cathedral is just as impressive, with a high nave and ribbed vaults that create an awe-inspiring atmosphere.