If you were out and about in London on Sunday there’s a good chance you may have caught at least one of the extreme dancing events that were going on.
Throughout the day dancers with real heads for heights took to famous London landmarks to perform routines from heights so high we feel dizzy just thinking about it.
From the side of Millennium Bridge to the top of City Hall dancers dressed in red donned harnesses and performed for passers by.
The surprise event was part of the London 2012 Festival which has been taking place in the city throughout the summer months and was put together by New York dancer Elizabeth Streb.
Check out some images from the event below.