This is an amazing bridge. The 1,900-foot engineering wonder perched 890 feet above the Colorado River bridges 2 states, Nevada and Arizona. It took five years and 21,000 workers to build the dam, and it cost $240 million. The Mike O'Callaghan and Pat Tillman Memorial Bridge is the longest bridge built with concrete arches in the western hemisphere, according to the Transportation Department. The arches measure 1,060 feet.
Songs and Music content by: Emerson Lake and Palmer, and Muse.
