The Air Force Academy in Colorado Springs opened in 1959. The distinctive campus resides at the foot of the Rocky Mountains and is roughly 7000 feet above sea level. The most iconic structure in the academy lies in the Air Force Academy Cadet Chapel which is the biggest man-made tourist attraction in Colorado. The chapel consists of 17 spires that shoot 150 feet into the sky. Today, the cadet chapel is listed on the US National Historic Landmarks.