A state-of-the-art audio device and headset from Orpheo USA is all you need to take Grand Central Tours' walking tour of historic Grand Central Terminal. The tour focuses not only on the architectural highlights of the monumental terminal, but unearths little-known secrets, anecdotes, archival material and the history of the Terminal. The audio tour is available every day except Thanksgiving and Christmas at specially marked "GCT Tour" windows on the Main Concourse. A map of the terminal is included. Audio tour scavenger hunts for teachers, as well as private docent-led tours, are also available.