New York Mayor Bill De Blasio marches in the Gay Pride Parade on June 28, 2015 in New York City. (Yana Paskova/Getty Images)

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Gabriel Anderson marches with Scouts for Equality during the 45th annual San Francisco Gay Pride parade Sunday, June 28, 2015, in San Francisco. (AP Photo/ Tony Avelar)

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A woman wearing a costume walks away from Turkish riot police during the Gay Pride parade on June 28, 2015 in the Istiklal street near the Taksim square in Istanbul. (OZAN KOSE/AFP/Getty Images)

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