"Dating originally from 1420, the clock was remodelled approximately once every century. When the retreating Nazi German army passed through Olomouc in the final days of the war in May 1945 they opened fire on the old astronomical clock, leaving only a few pieces (that can now be seen in the local museum). As a result of the serious damage the clock was reconstructed in the style of socialist-realism in the first years of communist rule in Czechoslovakia (1948-early 1950s). The religious and royal figures were replaced with athletes, workers, farmers, scientists and other members of the proletariat, while the glockenspiel was altered to play three pieces of traditional local music." (Text from Wikipedia) .