Kocatepe Mosque, Turkey

Photograph by Andrew Abrahamson

Kocatepe Mosque, one of the largest in the world (holding up to 24,000 worshippers), is a modern building completed in 1987. I had been given permission to wander around and take photos during the service, although I only got up to the top balcony after it had finished and most people had gone.

(This photo and caption were submitted to the 2012 National Geographic Photo Contest .)

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