Photographer Shawn Clover makes composite photos of the devastating San Francisco earthquake of 1906 and the same locations in the present day. Clover created part 1 in 2010 and part 2 was just published. (via Colossal, thanks Koshi!)
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.