A railway tunnel
Looping railway track, and tunnels, Yunnan
Railway in Yunnan, between Yi-Léang and Ko-Pao-Tsouen
Railway tunnel near the Great Wall of China
Automobile under the entrance to a tunnel
Storm damage at the service tanks (resevoirs), Hong Kong
A couple smoking at the entrance of the no 2 tunnel, China Mining & Metal Company Ltd., Tien Sze Liang
Three people by the entrance of the no 1 tunnel, China Mining & Metal Company Ltd., Tien Sze Liang
