MIDTOWN, Manhattan (WABC) -- One of the world's most iconic skyscrapers celebrated 91 years on Sunday.
The Empire State Building opened its doors on May 1, 1931.
The 102-story Midtown building draws more than 4 million visitors each year.
The building puts on a show night after night with dazzling light displays to highlight humanitarian causes, celebrations, and holidays.
On Sunday, the building was lit up in green to observe Eid al-Fitr, the end of Ramadan.
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