The station was opened in 1999 as part of the first part of the Cologne–Frankfurt high-speed line; the great majority of the high-speed line opened in 2002. It is 660 m long and 45 m high. It features a large dome containing a lounge area and a ticket hall, and is connected to the airport by a skyway that crosses the Autobahn 3. The Squaire, a one-billion-euro complex containing office space, hotels, convention centres and other facilities, has been built above the station. Nearby is Frankfurt Airport regional station which is located beneath Terminal 1 of the airport and which provides local S-Bahn services to Frankfurt, Wiesbaden and Mainz.