Palazzo Contarini del Bovolo in Venice
The Palazzo Contarini del Bovolo (also called Palazzo Contarini Minelli dal Bovolo) is a small palace in Venice, Italy, best known for the external spiral staircase, with a plethora of arches, known as the Scala Contarini del Bovolo (of the snail).
The palace is located in a less-traveled side-street near the Campo Manin, near the Rialto.
The staircase leads to an arcade, providing a charming panoramic view over some of the roof-tops of the city.
The palace dates from the 15th century. It was designed and built by architect Giovanni Candi in 1499 (Giorgio Spavento is believed to be responsible for the grand spiral staircase on the exterior).
Currently, the stair is being restored and it is closed to the public.