The photographs are genuine but they do not show the same “arch” (more correctly known as a “torii”). Moreover, while the first photograph does show a torii at Nagasaki, the second photograph depicts a torii at the Kozuchi shrine in the Japanese town of Otsuchi.
HOAX!!!
http://www.hoax-slayer.com/nagasaki-arch-hoax.shtml
The photographs are genuine but they do not show the same “arch” (more correctly known as a “torii”). Moreover, while the first photograph does show a torii at Nagasaki, the second photograph depicts a torii at the Kozuchi shrine in the Japanese town of Otsuchi.