The Line is a public art trail in London's East End, opened in 2015, that very roughly follows the path of the Greenwich meridian as it crosses the River Thames. It consists of a set of artworks positioned on a 7.7-kilometre (4.8 mi) walking route starting at the London Stadium, passing down the Lea Valley, crossing the Thames via the London Cable Car, and ending at The O2 in Greenwich. The trail includes works by Anthony Gormley and Tracey Emin.