St. Vitus Cathedral

St. Vitus Cathedral (Katedrála sv. Víta) is the largest and most important church in the Czech Republic, a Gothic masterpiece rising 102 metres above Prague Castle that took nearly 600 years to complete — construction began under Charles IV in 1344 and was only finished in 1929. The cathedral served as the coronation church of Bohemian kings and remains the burial place of Czech rulers including Charles IV and Wenceslas IV, as well as the home of the Bohemian Crown Jewels, stored in a chamber secured by seven keys held by seven different officials. Its interior is renowned for the St. Wenceslas Chapel — walls encrusted with over 1,300 semi-precious stones — and the Art Nouveau stained-glass window designed by Alfons Mucha in 1931, one of the most celebrated works in the building.