Several famous American landmarks and buildings have been demolished or removed due to various reasons. Some examples include Candlestick Park in San Francisco, Pennsylvania Station and the Twin Towers in New York, Birmingham Terminal Station in Alabama, Waldorf-Astoria and the Hippodrome in Manhattan, Singer Building in New York, Ebbets Field in Brooklyn, and the Chicago Federal Building in Illinois. These landmarks left behind legacies and significant historical events. The article also mentions the Cliff House in San Francisco, which has gone through multiple iterations but remains a popular tourist attraction.