Willis Tower is one of the tallest buildings in the US and the Skydeck Ledge at Willis Tower in Chicago.
First and foremost, Trump International Hotel and Tower is a hotel, but it also features a restaurant and spa.
The One World Trade Center is also known as the New World Trade Center, and you can find it in New York City.
The Empire State Building is in New York City and features two observation decks.
This skyscraper in New York City has 58 floors above the ground and features an energy-efficient design.
The Aon Center in Chicago is a business building that features several major headquarters.
This 77 story skyscraper underwent construction between 1928 and 1930, but it is still one of the tallest skyscrapers.
The New York Times Building may technically be a skyscraper. The lobby, however, is free to enter and open to anyone.
Bank of America Plaza is one of the biggest skyscrapers in the United States. You can find this skyscraper between Downtown.