This fascinating video by Astronaut Sunita Williams is a tour of the International Space Station she made late last year prior to returning to Earth after serving as commander. The ISS is bigger than you might imagine and it seems fun to fly around in zero gravity and i'm glad to see the various parts do seem to follow national stereotypes, the Russian toilet paper is coarse for example! I bought a book on the construction of the ISS a few days ago and i recommend it.