The World Trade Center, in New York City, was dedicated in 1973. A restaurant is on the 107th floor of the North Tower. It is 152 ft. tall and stands on a 150-ft. pedestal. The Gateway Arch, located on the riverfront in St. Louis, Missouri, is a tapered curve of stainless steel rising to 630 ft. The tallest manmade memorial in the U.S., the Arch was designed by Finnish-born U.S. architect Eero Saarinen and built between 1963 and 1966.
Visitors can ride to the top in specially devised capsule-like tram cars.
From 1927 until his death in 1941, Borglum worked on chiseling the 60-ft. likenesses of Washington, Jefferson, Lincoln, and Theodore Roosevelt. His son, Lincoln, finished the sculpture later that year. Designed by Joseph B. Strauss, this elegant suspension bridge has a main span of 4,200 ft. The Needle, which is 605 ft. tall, is topped by an observation deck and a revolving restaurant.