Chicago's Sears Tower, world's tallest building (443 m), tops out

New York City is the most populous city in the United States, with a metropolitan area population of over 19 million as of 2025. Its skyline is one of the largest in the world, and the largest in the United States, in North America, and in the Western Hemisphere. Throughout the 20th century, New York City's skyline was by far the largest in the world. New York City is home to more than 7,000 completed high-rise buildings of at least 115 feet (35 m), of which at least 106 are taller than 650 feet (198 m). The tallest building in New York is One World Trade Center, which rises 1,776 feet (541 m). The 104-story skyscraper also stands as the tallest building in the United States, the tallest building in the Western Hemisphere, and the seventh-tallest building in the world.