Designed by Jacopo Sansovino this small building is the campaniles porch. It has served as a meeting place, Venetian offices, and a guard post and currently as the ticket office and entry to the elevator for the campanile.
Above each of the 3 entry portals is a relief left to right Jupiter, Venice and Venus. Only two of the doors are used, the left for entry the right for exit. Flanking each door is a statue left to right Minerva, Apollo, Mercury and Pax.
If you are waiting in line, take time to admire the exterior of this building