St. Mark's Basilica

The Patriarchal Cathedral Basilica of Saint Mark or Basilica Cattedrale Patriarcale di San Marco, commonly known as St Mark's Basilica is the cathedral church of the Patriarchate of Venice; it became the episcopal seat of the Patriarch of Venice in 1807. It is dedicated to and holds the relics of Saint Mark the Evangelist, the patron saint of the city.
The church is located on the eastern end of Saint Mark's Square, the former political and religious center of the Republic of Venice, and is attached to the Doge's Palace. Prior to the fall of the republic in 1797, it was the chapel of the Doge and was subject to his jurisdiction.
It’s most famous feature are the four gilded bronze horses were booty taken from The Hippodrome of Constantinople at the end of the 4th Crusade in 1204. They were soon installed on the façade. In 1974 the original horses were brought inside and were substituted with copies outside.