The New York Philharmonic in Venice The Ageless Mozart - 1959 TV was released on:
USA: 22 November 1959
In Venice, Amy and Dan Cahill found the clue tungsten in Fidelo Racco's (one of Mozart's sponsors for his symphonies) house, in a storage place under a piano.
The Merchant of Venice - 1914 was released on: USA: February 1914
Venice of the Orient - 1920 was released on: USA: December 1920
The Carnival of Venice - 1909 was released on: USA: February 1909
I just recently visited Venice. I stayed at Hotel Mercurio, and had a room which looked over the Canal of Barcaroli. Directly outside of my window, was the building where Wolfgang Amadeus Mozart stayed. There is a message written in marble right on the building indicating such. The gondolas would come by and the gondoliers would tell their passengers that it was the building where he stayed. So, the answer to your question is the Canal of Barcaroli.
An American in Venice - 2013 was released on: USA: 3 May 2013
Venice Mystery - 2007 VG was released on: USA: 2007
The Canals of Venice - 1921 was released on: USA: 11 September 1921
A Mexican Venice - 1918 was released on: USA: 26 August 1918
The Merchant of Venice - 1908 was released on: USA: 22 December 1908
The Merchant of Venice - 1912 was released on: USA: 26 July 1912
Venice Heat - 2009 was released on: USA: 1 January 2009