Designed by architect Cass Gilbert (who built the United States Supreme Court building) between 1910 and 1912 as Frank W. Woolworth’ NYC headquarters, the landmarked Woolworth Building was once the tallest building in the world. Long closed to the public, tours of the magnificent vintage lobby are available. You can opt for 30, 60, 90-minute or custom tours. A restaurant, The Wooly Public, offers a full-service menu on the ground floor. Prices for timed tours, $45.