Visitors to the The Gateway Arch get their photograph taken as the stainless steel glissens in the sun while the 630-foot monument celebrates its 40th birthday in downtown St. Louis on October 28, 2005. The tallest monument in the United States, designed by Eero Saarinen, took two and a half years to errect and was built for its simplicist design but later became a symbol of the Gateway to the West. (UPI Photo/Bill Greenblatt)