St George's Basilica, Hradcany, Prague

In the classic views of Prague from the river or Charles Bridge with St Vitus Cathedral in the castle, two towers can be seen to the right of the cathedral. This is the Romanesque basilica of St George. It is the oldest church building in the city but I personally am not too sure what features are original and what are "restoration", especially the nave and the towers. However there are extensive remains of frescoes and murals inside, so maybe much of the structure if not always the detailing is medieval. The two towers flanking the east end were added in the rebuilding of the church after a fire in 1142. The east end is raised over a crypt. Later still of course the C14 apsidal SE chapel, the C17 classical west front and the small domed chapel at the SW corner.