The municipal government in Zhejiang's capital, Hangzhou, is taking physical fitness to new heights by building a new running track on a rooftop. Built on top of an exhibition hall in southern Hangzhou, the plastic track has 4 lanes, with three of them for runners and the other a cool-down lane for those who prefer to walk. Some of the lanes are sloped, while others are flat. The track's designers suggest they don't want to scare off people who may find it physically challenging to run on a slope. The new running track is part of a new sports park in Hangzhou's West Lake District. Apart from the track, the 20,000-square-meter park also features two small football pitches, a roller skating venue and other workout equipment. (Photo/VCG)