A stone shaped like a roof, 60 centimeters deep ... the bearing capacity of outreaching parts of the pagoda. On the whole, however, the inner structure of a solid pagoda is relatively simple.

Helicopter's main rotor and roof structure recovered from Hudson River crash site, aiding the NTSB investigation.

Japanese companies have built what they call the world's first 3D-printed train station, a compact white curved-roof ...