New York City is known as the "Big Apple", though the exact origin of this nickname is unknown. Some theories suggest it stemmed from sales of apples during the Depression or jazz musicians referring to jobs in New York. The document then lists and describes 10 top sights to visit in New York City, including the Empire State Building, Statue of Liberty, Central Park, and museums. It provides details about each landmark, such as the Statue of Liberty commemorating immigration and the American Museum of Natural History hosting changing exhibits.