Thursday marks Guinness World Records Day. It is estimated that some 20,000 people will attempt to break a wide range of records.
British Artist Joe Hill took a crack at a record by creating a 9601 square-foot mutal.
Matt Dunham / AP
People break a world record as they take part in the world's largest and longest 3D anamorphic street painting in the Canary Wharf district of London, on Thursday, Nov. 17.