Atlanta’s Beltline is “a thing, a place, and a movement.” And Ryan Gravel, author of Where We Want to Live: Reclaiming Infrastructure for a New Generation of Cities, conducts the orchestra. The Beltline, which originated as Gravel’s master’s project at Georgia Tech in 1999, is an ongoing effort to transform a twenty-two-mile circle of abandoned railway into a greenway and transit corridor surrounding central Atlanta. Its unexpected success has encouraged cities all over the country to take a hard look at their infrastructural scars and reimagine them as vibrant cultural opportunities.