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.
It's not just a crack on the wall. "Find the cracks and exploit the discoveries to be revealed there . then move on to practice running headlong into the brick walls. Cracks crack first. Heads crack before brick walls. (from: STREET ART UTOPIA)"