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1 - The Cathedral of Saint Patrick (New York, New York)
Known simply as St. Patrick's Cathedral, the building is one of the most iconic landmark in New York City. The city of New York is the largest in America, with a population over 8 million. The structure has been the seat of Catholicism in New York since 1910. The previous seat is a still-active church known as the Basilica of St. Patrick’s Old Cathedral, or Old St. Patrick's, and it is over 200 years old.

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