America in Bloomington. In 2014, service began on the Green Line which connects downtown with the University of Minnesota and downtown St. Paul. Rediscovering the riverfront As industry and railroads left the Mississippi riverfront, people gradually became aware that the riverfront could be a destination for living, working, and shopping. The Minneapolis Park and Recreation Board acquired land along the river banks, including much of Nicollet Island, all of Boom Island, and the West River Parkway corridor. These properties were developed with trails and parkways, and this spurred the development of private land adjacent to the riverfront, creating the new Mill District neighborhood. The Stone Arch Bridge was opened to pedestrian traffic in 1994, creating a link in the trail system and providing extensive views of Saint Anthony Falls. Some of the old commercial buildings were adapted to new uses. The Whitney Hotel was built in what used to be the Standard Mill, while the North Star Lofts was a new use for the former North Star Woolen Mills building. Other projects, such as Saint Anthony Main and a number of condominium and townhouse projects, provide residents with the opportunity to live within view of Saint Anthony Falls. Urban archeology along the riverfront has uncovered remnants of the flour mills built in the 1860s and 1870s, along with the headrace canal that once supplied water to the mills and the trestle supports for the Minnesota Eastern Railroad. These ruins, which had once been buried with gravel and fill, are now open to the public as Mill Ruins Park. The park has signs interpreting the history of the area and the buildings that had once been there. The Washburn "A" Mill, severely damaged by a 1991 fire but now stabilized, now hosts the Mill City Museum, opened in 2003 by the Minnesota Historical Society. The museum presents a history of flour milling and industrial development along the river, and an eight-story elevator ride shows the various steps that turned wheat into flour. The Guthrie Theater moved to a new building along the riverfront in 2006, just southeast of the Mill City Museum. Confronting structural racism By the 21st century, Minneapolis was home to some of the largest racial disparities in the United States. The city's population of people of color and Indigenous people fared worse than the city's white population for many measures of well-being, such as health outcomes, academic achievement,