Courtesy of Metafilter, I was introduced to the Special Collections and Archives at the University of Iowa’s tumblr. Go there! Click on that link! You think an archival library must be a sombre and boring place – just see for yourself. See flying squirrels! Teeny tiny books with their own teeny tiny bookstands! How about Alice’s Adventures in Wonderland as illustrated by Salvador Dali! And so much more!
(They have lots of cool gifs and other surprises there too)