268 Zhonghua Road, Huangpu District.
Shanghai, China

"For thousands of years humans have been changing the face of the earth, not only building upward, but burrowing into the ground to build tunnels for travel. These feats of subterranean engineering usually pass under rivers and crowded roads. In Shanghai, tunnels greatly ease traffic by providing alternate routes and subways help millions get to and from work."

"Further discretion is advised."