The Leaning Tower of Niles, located in Niles, Illinois, is a quirky replica of the famous original. This version was built in just three years between 1931 and 1934, and was originally constructed as a water storage facility for nearby recreational pools. It stands at 94 feet (29m) tall – about half the height of the original – and is built from reinforced concrete.

Before and after: how the world's most famous attractions have changed

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We've tracked down 18 near-identical copies of world-famous monuments