Venice is situated across a group of 118 small islands[1] that are separated by canals and linked by over 400 bridges.[2][3] The islands are located in the shallow Venetian Lagoon, an enclosed bay that lies between the mouths of the Po and the Piave rivers (more exactly between the Brenta and the Sile). Parts of Venice are renowned for the beauty of their settings, their architecture, and artwork.[2] The lagoon and a part of the city are listed as a UNESCO World Heritage Site.[2]