Near Ferretto Square. With a stay at Unaway Ecohotel Villa Costanza Venezia in Mestre, you'll be 8.2 mi (13.2 km) from Peggy Guggenheim Museum and 8.9 mi (14.3 km) from St. Mark's Square. This hotel is 8.9 mi (14.3 km) from Rialto Bridge and 8.9 mi (14.3 km) from St. Mark's Basilica.