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Picture of the Day: GEOMETRIC ELEGANCE Photograph by Thomas Hawk Captured wonderfully by Thomas Hawk is this elegant spiral staircase located at the Embarcadero Center in San Francisco’s financial district. Spanning four city blocks, the Embarcadero Center is a commercial complex of five office towers with over 3 million square feet of office and retail space.…

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triangle stairs

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Mental Flossfrom Mental Floss

10 Notable Staircases

neato

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