01/06/2012 07:20 pm ET Updated Mar 07, 2012

Lost Tunnels Of Downtown L.A. | LA As Subject | SoCal Focus | KCET

Underground passageways hold the power to excite--especially when they're hidden underneath a busy city soaked in sunshine. News reports have explored the miles of pedestrian tunnels still buried beneath the civic center. Action films and car commercials often feature images of automobiles speeding through the Second and Third Street tunnels.

Other tunnels in downtown Los Angeles, including L.A.'s first subway, were landmarks for decades but are no longer open for exploration or exploitation.