This green "Eye" is formed by a tall spiral staircase in a brick tower, reaching toward the bell inside the Lamberti Tower, Verona Italy. (You are looking upward into the bell tower:) By Davide Lombardi
San Francisco’s Mosaic Staircase. Hidden art gem in San Francisco; head to and Moraga to discover The Avenue Tiled Steps. Not only will you be able to see some amazing views of the city, you'll get to appreciate a beautiful mosaic running up 163 steps.