The lion above the Porta Magna and the Rio dell’arsenale entrance towers to the Arsenale di Venezia, Castello, 30122 Venezia from the 1954 film ‘Senso’.
The film starred Alida Valli as the Contessa and Farley Granger as Mahler and was directed by Luchino Visconti who had hoped to cast Ingrid Bergman and Marlon Brando in the lead roles. In the film, the Contessa searches for Mahler at the Porta Magna. The site is now the home of La Biennale di Venezia, a major contemporary art exhibition that takes place once every two years. https://witness.theguardian.com/assignment/554f8cbce4b0c0082b0da72b/1517633