Description • World's tallest monument
• Architect: Eero Saarinen
• The arch sways .5" to 1" in 20 MPH winds.
• The Arch is as wide as it is tall: 192 meters at its base.
• An observation area at the top of the Arch is accessible via a tram.
Do you see any incorrect data on this page? Please let our editors know of any corrections you can make by posting them in the Database Corrections section of the discussion forum (open to the public).