Abandoned Places (and its little cousin Abandoned Pictures), which routinely tweets real pics from around the globe of places deserted, abandoned, and going back to nature. Perfect for postapocalyptic settings, zombie apocalypse games, and visits to a future or alien planet where something went very wrong. As a Doctor Who RPG GameMaster, it's easy for me to introduce such settings and let the players TARDIS away from them, but I'd love to do a survival-type campaign where characters keep stumbling on ominous deserted spaces using a series of these. Let's look at a few to see what they inspire.
Do YOU have favorite Twitter accounts that could inspire adventure ideas like this? Let me know, and I might feature them in the future! I've got a couple more in mind already!