Only the Swedes could make an otherwise rather dull public transit system so riveting; indeed the Stockholm metro has been deemed the world’s longest art gallery numerous times, at 100 kilometres long and stretching over 90 stations.
People walk at the Stadion subway station on November 2012 in Stockholm. Over 90 of the 100 subway stations in Stockholm have been decorated with sculptures, mosaics, paintings, installations, engravings and reliefs by over 150 artists.
Rådhuset station in Stockholm was constructed using organic architecture, which leaves the bedrock exposed and unsculptured, appearing to be based on natural cave systems metro station (T-bana) Wikipedia page. Photo by Alexander Dragunov.