It looks like a trick of the eye.
STUNT rider and YouTube sensation Danny MacAskill amazed onlookers last night with a 16ft (5m) loop-the-loop on his bike in front of the London Eye.
The stunt saw the Scottish street trials rider cycle a loop which was floating on a barge on the Thames in front of the landmark. The gravity-defying trick made it appear as if he was cycling around the Eye.
After pulling off the trick, MacAskill said: "This is one of the biggest set-ups I have ever ridden and the location is amazing. To have a five-metre loop floating on a barge is something surreal."
The stunt was to promote Microsoft's mobile personal assistant software Cortana.
MacAskill added: "I always look for new challenges and the chance to ride this massive loop with the help of Cortana is another achievement I can be proud of."
Cyclist Danny MacAskill after performing a 16ft (5m) loop-the-loop in front of the London Eye