London's non-profit art walk, "The Line", launched May 23 and opened to the public in East London. The path follows the line of the Greenwich Meridian, across 3 miles from London's waterways from The O2, the Royal Docks, and Three Mills. The exhibit features sculptures by Martin Creed, Abigail Fallis, Damien Hirst, Gary Hume, Sir Eduardo Paolozzi,…