The Denver Millennium Bridge is the world's first cable-stayed bridge using post-tensioned structural construction. Its 200-foot (61 m) white tapered steel mast rises above Denver's northwestern skyline, connected to the bridge deck and foundation anchored by steel cables. The footbridge crosses railroad tracks and the regional light rail system, climbing no higher than 25 feet (8 m) above street level, thereby minimizing the height pedestrians must climb.