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The Cadillac Chair statue was the city's 200th birthday present to itself. Unveiled in 1901, by 1941, it had become a favorite resting place for vagrants and was destroyed that year. This quirky monument is one of 15 lost landmarks chronicled in "Forgotten Landmarks of Detroit" by Dan Austin (History Press, $22.99, 263 pages).

Michigan Soldier's and Sailor's Monument, in Detroit, commemorating Michigan's sailors and soldiers killed during the Civil War. It was unveiled on April 9, 1872. (Photo courtesy of Manning Brothers Commercial Photographers, Detroit, MI)