The Stockholm subway system is said to be the longest art exhibition in the world - 110 kilometers in length. Traveling by subway is like traveling through an exciting story that extends from the artistic pioneers of the 1950s to the art experiments of today. Over 90 of the 100 subway stations in Stockholm have been decorated with sculptures, mosaics, paintings, installations, engravings and reliefs by over 150 artists. It’s a part of a long tradition of public art for public transport.