Part of the Vyšehrad castle is the  Basilica of St Peter and St Paul, the old cemetery, and  the rotunda of St. Martin which is the oldest surviving building in Prague.  Originally founded in 1070-1080 by the Czech King Vratislav II, the Romanesque basilica suffered a fire in the year 1249 and has been rebuilt in gothic and later in neo-Gothic style. The basilica features an impressive stone mosaic above its entry, and its twin 58 m towers can be seen atop a hill to the south from along the Vltava River in central Prague.