The Gold Line is a 19.7-mile (31.7 km)[3] light rail line running from Pasadena to East Los Angeles via Downtown Los Angeles serving several attractions, including Little Tokyo, Union Station, the Southwest Museum, Chinatown, and the shops of Old Town Pasadena. The line, which is one of six in the Metro Rail system, entered service in 2003 and is operated by the Los Angeles County Metropolitan Transportation Authority (Metro). The Gold Line serves 21 stations[3] (including two subway stations).