Palladio Hotel Spa Resort
Set on Giudecca, overlooking Saint Mark’s, this sleek spa comes complete with hamman and views back across the water. You can even have a massage in the hotel’s glorious gardens, once part of a sixteenth-century convent.
See the “shadow-palace” via a secret door, disappearing into a den of passageways to the state inquisitors’ rooms, torture chamber and prisons linked to Casanova’s escape in 1755. Spot the “mouth of truth” letterbox where citizens posted secret denunciations.