This convenient summary of case studies reviews the performance and failure of structural, foundation, and geoenvironmental civil engineering systems. Failures in embankments, dams, slopes, landfills, recycling facilities, bridges, and buildings are covered. For each study, an outline, a summary of the lessons learned, and a list of background references are provided. The ongoing study of the tower of Pisa, the lower San Fernando Dam, Love Canal, the Tacoma Narrows Bridge, the San Francisco-Oakland Bay Bridge, the Cypress Viaduct, the Hartford Civic Center Coliseum, and the Hyatt Regency Hotel Pedestrian Walkways are among the case studies examined.