St Georges Basilica
Sightseeing in Prague picture - The oldest preserved church building of the Prague Castle. Its romanesque architecture is in the best state of preservation among all similar buildings in Bohemia. Founded in 920 by the Prince Vratislav I, it was rebuilt in the 12th century. The facade gained its present baroque appearance in the 17th century. Outstanding are the chapels of St. John of Nepomuk and St. Ludmila. St. Ludmila was the grandmother of St. Wenceslas and the first Czech Christian martyr. http://www.hrad.cz/cz/