If it isn't the Daleks wreaking havoc throughout the cosmos, it's the Cybermen! More often than not, they're getting up to all kinds of shenanigans right here on planet Earth (or, at least, a parallel version of it) and back in 1968 they stomped their way through London to preserve their presence in TV history by stopping off at one of its most recognisable landmarks, St Paul's Cathedral. The shot was recreated during the Series 8 finale.