Urban explorers surreptitiously gain access to the Post Office Railway underneath London, take lots of photos.
"Q: What the hell is this site about? This is a site about urban exploration in the Ozarks." Abandoned water slides, underground tunnels, abandoned buildings and half-demolished malls throughout Missouri were all once fair game for this blog, and remain fair game for those who post in Underground Ozarks' forums.
Sewers of Canada Many pictures of Great Canadian Drains.
Joe Nishizawa's new photojournalism book, Deep Inside, is a visual exploration of the amazing, highly mechanized world under Japan's urban areas. This brief interview with the author is accompanied by several interesting photos.