Crews working on a building project in San Francisco's Civic Center have unearthed the massive foundations of the old City Hall, a ghostly reminder of San Francisco's greatest disaster. The imposing old City Hall collapsed in a shower of bricks, stone and steel in the 1906 earthquake. It was the largest municipal building west of Chicago and was so elaborate it took 25 years to build. The City Hall was supposed to be earthquake proof, but it collapsed in seconds after the great quake struck.
This photo looks like two images stitched together; above is a normal forest, and below, a strange, Martian one. But it's a single image from a single place and time — the hills of western Hungary, six months after a devastating industrial accident.