Few buildings in Manhattan have had a richer and more varied life than 200-year-old Castle Clinton, the magnificent red sandstone structure that lies in historic Battery Park. Although originally built as a fortress just before the outbreak of the War of 1812, its actual fame rests on the years when it was known worldwide as Castle Garden, a name that underlined its intimate connection with the surrounding park. Under that name, it served successively as Manhattan's preeminent public events hall and theater (1824-1855), then as America's first great landing place for millions of immigrants (1855-1890), and finally as the oldest and grandest municipal aquarium in the United States (1896-1941). Castle Garden and Battery Park invites readers to step back in time and dip into this legendary monument's dramatic story and learn how it has managed to survive into the 21st century.