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Walkie Talkie Tower, London

The skyscraper at 20 Fenchurch Street, dubbed the "Walkie-Talkie tower", last month won the "Carbuncle Cup" -- an award given by Building Design magazine to the worst building in the U.K.

The tongue-in-cheek award seems mean, but the tower has caused a number of problems.

In July, the U.K.'s Daily Telegraph reported that the building was creating a wind tunnel that blew down shop signs and swept pedestrians off their feet. In 2013, the building's south-facing wall reflected sunlight onto the streets below, melting a car's bodywork. Non-reflective film had to be attached to the tower's windows as a prevention.

But the Walkie Talkie is not the only architectural mistakes that have been made. Here are 10 more unintended errors.

By Luke Graham and Ellie Hall

Richard Newstead | Moment | Getty Images