"Ca d’oro" (Canal Grande, Cannaregio), is one of the best samples of the Venetian Gothic. It’s specially remarkable its facade, its courtyard (with a wonderful fountain) and some wonderful pictures (by Mantegna, Giambono, Signorelli, Pontormo, Tintoretto and Tiziano among others).
"Ca’Pescaro" (Galleria d’Arte Moderno Museo Orientale, Canal Grande, Santa Croce) is a superb Barroque Palace (1652), where you’ll find a great collection of Modern art (with works of Rodin, Rosso, Klimt and Nicholson).
"Ca’Rezzonico" (Museo el Settecento Veneziano, Canal Grande, Dorsoduro) is the most important palace built by Longhena. Nowadays it’s the 18th century Venetian Art Museum (with works of Lazzarini, Piazzetta, Longhi and Guardi among others).