Thanks to the city's growing collection of neighborhood heritage trails, you can combine your history lesson with your walking regimen. In downtown, Adams Morgan, U Street and other corners of the city, you'll find clearly-marked signs that feature photos, maps and text for self-guided tours. Explore African-American history in Shaw and find Civil War and civil rights landmarks throughout downtown. Discover industrial development and urban growth in Southwest, cultural diversity in Adams Morgan and Columbia Heights areas, and commercial as well as military history on Barracks Row.