The Violino d’Oro, opened in Venice in early November, has three entrances, each representative of a different side of the La Serenissima, in which this exciting new boutique hotel makes its home. There’s the glass-paneled door in midst of the bustle off Calle Larga XXII Marzo, a main gondola hub right out front and foot-traffic pulling visitors toward San Marco. There’s the entrance for a watery arrival off Rio di San Moise that leads straight into a stylish salotto, full of red velvet...