Alleman, the newest town that was added to Polk County in 1973, is known for its four towers: the local TV tower (2,000 ft. tall), Des Moines Hearst-Argyle Television Tower (2,000 ft. tall), Saga Communications Tower (1,539 ft. tall), and the American Towers tower (1,999 ft. tall). These towers make Alleman home to some of the world's tallest structures.

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