Istanbul's Grand Bazaar is one of the oldest covered markets in the world and hosts more than 3,000 stores. It is estimated that 250,000 to 400,000 people visit the bazaar each day, possibly making it the most popular tourist attraction in the world.

Kenan Kalmaz poses for a photograph inside his family's store selling traditional fabrics inside the Istanbul Grand Bazaar on Jan. 7, 2016 in Istanbul.
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