Are you a baseball fan? If so then you’ll love Historic Baseball Resources from the Library of Congress. This site has classic images, audio and video files (including a video recorded by Thomas Edison in 1898!)
One of the best sections is the online collection of baseball cards from 1887-1914, wonderfully digitized and fun to browse through. The Jackie Robinson section also makes fascinating reading. You’ll be humming ‘Take Me Out to the Ball Game’ in no time at all!