This has been going around the Twitter all morning, London time, and no wonder. Prepare to spend at least an hour clicking around on this beautiful interactive representation of the Doctor’s history in a Tube map metaphor:
Click over to designer Crispian Jago’s excellent blog, Science, Reason and Critical Thinking to interact with it. Mouse over stuff, and you get popups like this one (of which this is bit a small part, of course):
Seriously, seriously awesome.
(If you stumble across a cool Doctor Who thing, feel free to email me with a link.)