Cities provide endless opportunities for photographs involving abstraction, juxtaposition, pattern, and geometry. One of my favorite ways to explore San Francisco is to visit the many "privately owned public open spaces," a network of plazas, terraces, parks, sculpture gardens, and other delightful spots scattered throughout downtown. They allow the public unique interactions with the architecture and life of the city, sometimes affording views that would be impossible otherwise.

Please click on an image to see larger versions in a slideshow. Each photo is available in an edition of 10.