
TOKYO -- People have excavated beneath the earth from time immemorial: mining for riches, tunneling for transport, and creating spaces for safety and storage.
The country's subterranean world is rich in history and mystery
TOKYO -- People have excavated beneath the earth from time immemorial: mining for riches, tunneling for transport, and creating spaces for safety and storage.
Nikkei Asian Review, now known as Nikkei Asia, will be the voice of the Asian Century.