Prague is one of the most popular destinations in Europe, a must-see as the entire city is like an open-air museum of the history of architecture. Are you there just for a couple of hours? Then follow the Royal Way, which links the Old City Square with the historical city hall to the hill of the Royal Castle, passing through Charles Bridge - probably the most photographed structure in Prague), the pictorial Mala Strana district with its baroque houses to arrive on the top of the hill where the castle stands. It was for centuries the residence of the Kings of Bohemia, then of the Habsburg Emperors and today of the President of the Czech Republic. The tour is called the Royal Way as Kings and Emperors pass through during coronations and ceremonies.