On July 17, 1981, the Hyatt Regency Hotel in Kansas City, Missouri, held a videotaped tea-dance party in their atrium lobby. With many party-goers standing and dancing on the suspended walkways, connections supporting the ceiling rods that held up the second and fourth-floor walkways across the atrium failed. Both the second and fourth-floor walkways collapsed onto the crowded first-floor atrium below while the offset third-floor walkway remained intact. The collapsing of the Kansas City Hyatt Regency walkways is considered the most devastating in the history of the United States.