The Old Town Hall is the vortex of tourist activity in Prague. Visitors come to catch a glimpse of the clock's elusive statuettes, see the Old Town Hall's exhibitions in the Historic Halls, and to climb the tower. The Town Hall was established in 1338, during the reign of King John of Luxembourg (1310-1346). The oldest parts of this complex of buildings are the Gothic sections and the tower. In May 1945, the Nazis set fire to the building as their last act during the occupation, but most of the damage has been repaired. The Astronomical Clock was built at the beginning of the 15th Century, and every hour the Twelve Apostles (added in 1490) move across just above the clock face, bowing to the crowd.