An adrenaline junkie scaled a 40-story 690ft (210m) crane – without any safety ropes, in the early hours of Monday morning. /VCG Photo

Urban explorer Syed Bukhari, 21, filmed himself risking his life to climb the crane, which is said to be one of the tallest in Europe, at One Bishopsgate Plaza, central London. /VCG Photo

Mr. Bukhari, who runs a YouTube channel, said: "Visually, it was the best climb yet. I timed it perfectly with the sunrise." /VCG Photo

One Bishopsgate Plaza, the site of his crane stunt, is still under construction in the City of London. With 40 floors now, it will ultimately be a 43-story tower with a mixture of high-rise residential and hospitality units. /VCG Photo