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The Roman Colosseum features arches and pillars.
The Roman Colosseum features arches and pillars.
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A stone arch frames the courtyard of the Bai Yun Guan temple in Beijing.
A stone arch frames the courtyard of the Bai Yun Guan temple in Beijing.
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Venice Beach, Los Angeles, California - March 30, 2011: Skatepark on the beach of Venice, California.
Venice Beach, Los Angeles, California - March 30, 2011: Skatepark on the beach of Venice, California.
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Ornate stonework displays the effects of time at an old fort in India.
Ornate stonework displays the effects of time at an old fort in India.
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A silhouetted archway frames reflections of sunlight on rippling water in India.
A silhouetted archway frames reflections of sunlight on rippling water in India.