1937 Flood Collection: the Public Library of Cincinnati and Hamilton County examines a “the impact of the flood through photographs, scrapbooks, diary entries, and other documents” [it's a wiki, so you can add your own].
Lake City Lake: the simplest map ever depicts Madison, WI.
Return to Atlanta: Zeus is rephotographing the same ATL sights he originally captured two decades ago.
Sign Language: more ghost sign love.
Envisat’s Breathtaking Photos of Earth from Space: just that; wow.