This is the construction site of the Korean International Circuit. The first Formula One race will be held at the track in 2010. The deal is for 7 years, with a 5 year option after that which would take the race until 2021.
http://www.motorsport-magazin.com/bilder/f1/1/1/5775/0217512/2009_korea__strecke__bauarbeiten__streckenbau.html