Patrick Acton's model of the International Space Station is made of 280,000 matchsticks and 8 gallons of glue. It measures 11 by 15 feet, making it about 1/26 of the size of the real ISS, though it's probably less resilient to the harsh environment of near-Earth orbit.
The wooden ISS took him1,950 hours to create. The matchsticks, laid end to end, would reach seven miles. Acton's model be displayed at the Johnson Space Center in Houston as part of a Ripley's Believe It or Not exhibit. Included with it are two cutaways of the habitation module and other areas of the station.
Acton, the owner of Matchstick Marvels, previously created a replica of Hogwarts, an Apache helicopter, and a model of the Space Shuttle Challenger on its launchpad, all of which can be seen at his replicas page.