Take a tour of the ISS (International Space Station), just posted on YouTube this week. The ISS is an international project, including the five participant space stations: American National Aeronautics and Space Administration (NASA), the Russian Federal Space Agency (RKA), the Japan Aerospace Exploration Agency (JAXA), the Canadian Space Agency (CSA), and the European Space Agency (ESA).
It has been under construction since 1998(!) and it scheduled for completion in 2011. Read more about the station on NASA's site.