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St. Mark’s Basilica
St. Mark’s Basilica (Basilica di San Marco) is the most 
famous church in Venice and the best-known example 
of the city’s unique Italo-Byzantine architecture.
Built to house the relics of Mark the Evangelist, little 
is known about the original church buildings, but the 
current structure is thought to have been constructed 
between 1073 and 1093. The basilica is laid out in the 
design of a Greek cross and the tallest of the five 
domes reach 141 ft. (43 m) in height.
While the layout of the church has remained constant 
over the centuries, the decoration on the inside and 
outside of the church has changed greatly. Venice’s 
involvement in crusades and conquests saw mosaics, 
columns, and friezes from all over the Mediterranean 
added to the original opulent, golden mosaic interior. 
Outside, the exterior brickwork was gradually covered 
with marble cladding and carvings as Venetian vessels 
returned with the spoils of war and trade.
A symbol of the wealth and power of the Venetian 
Republic, St. Mark’s Basilica remains one of the city’s 
most impressive landmarks today.