This has documented and preserved various historic districts in and around downtown. Through the late 1960s and early 1970s, large residential neighborhoods were built to accommodate the soldiers coming back from the Vietnam War and for those associated with Ft. Benning. These range from Wesley Woods to Leesburg to Brittney and Willowbrook and the high-end Sears Woods and Windsor Park. Large tracts of blighted areas were cleaned up. A modern Columbus Consolidated Government Center was constructed in the city center. A significant period of urban renewal and revitalization followed in the mid- to late 1990s. With these improvements, residents and businesses have been attracted to formerly blighted areas. Municipal projects have included construction of a softball complex, which hosted the 1996 Olympic softball competition; construction of the Chattahoochee RiverWalk; construction of the National Civil War Naval Museum at Port Columbus, construction of the Coca-Cola Space Science Center, the expansion of the Columbus Museum, and road improvements to include a new downtown bridge crossing the Chattahoochee River to Phenix City. During the late 1990s, commercial activity expanded north of downtown along the I-185 corridor. During the 2000s, expansion and historic preservation continued throughout the city. South Commons has been revitalized. This area combines the 1996 Olympic softball competition complex, A. J. McClung Memorial Stadium, Golden Park, the Columbus Civic Center, and the recently added Jonathan Hatcher Skateboard Park. The National Infantry Museum has been constructed in South Columbus, located outside the Fort Benning main gate. Columbus has a center for the fine and performing arts. RiverCenter for the Performing Arts, which opened in 2002, houses Columbus State University's music department. In 2002, Columbus State's art and drama departments moved to downtown locations. Such initiatives have provided Columbus with a cultural niche and with vibrant and modern architecture mixed among older brick facades. The "Ready to Raft 2012" campaign is a project that created an estimated 700 new jobs and is projected to bring in $42 million annually to the Columbus area. The project resulted in the longest urban whitewater rafting venue in the world. This, in addition to other outdoor and indoor tourist attractions, led to around 1.8 million visitors coming to Columbus during fiscal 2015, according to the Columbus Convention and Visitors Bureau. In upcoming years, the city predicts that an additional 30,000 soldiers will be trained annually at Fort Benning due to base realignment and closure of other facilities. As a result of this, Columbus is expected to incur a major population increase.