The arch in this picture, (Atorii, a Japanese gate commonly found at the entrace of a Shinto Shrine) is traditionally made of wood or stone. The photo above is actually from two different arches.
The first picture shows a Torii standing after the U.S. dropped an atomic bomb on the city of Nagasaki in August 1945. Nagasaki is on the western side of Kyushu, the southernmost of the Japanese islands.
The second photo is not from Nagasaki, but from Kozuchi Shrine in Otsuchi (Iwate Prefecture) on the northeast of Honshu, after a tsunami struck that area in March 2011. Geographically, these two arches are on the opposite sides and ends of Japan.
source: http://www.snopes.com/photos/architecture/nagasaki.asp
