Spencer Tunick started "Nude Adrift", a world project, in 2001. His goal is to complete a body of work while travelling to all the continents. The project combined the artist's mass group installations, as well as a series of individual portraits. He has been documenting the live nude figure in public using photography and video since 1992 and has organised over 65 group installations. Last Sunday He beat his own record when 7,000 people posed nude for him in Barcelona.