The expedition leader likened the ruined fortification to “a complete underground city.” The survey covered the remains of imperial Japanese military facilities such as airfields and pillboxes.

There may soon be a solution to the space issue in crowded cities. By using automated parking systems, we can soon park our cars in robotic parking garages. Eco Park in Japan is an automated car ...

They call it the "Tokyo Underground Cathedral" and the "Tokyo Parthenon" because of its monumentality. But, in reality, it is a fabulous work of engineering to prevent flooding in Japan's main city.

The Ben Thanh – Suoi Tien Metro, the first in Vietnam to feature underground sections, has been officially inaugurated. The ...