It outdraws New York's Empire State Building (pictured), big time. From 2003 to 2008, the Parisian towers annual visitor count grew from 5.9 million to 6.9 million. (The Empire State Buildings operators report more than 3.5 million visitors a year.) The Paris tower is open every day and includes two restaurants. Summer hours are 9 a.m. to 12:45 a.m.
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