Images of China's Olympic athletes cover the walls of the newly expanded subway system. Within the city itself, Beijing's subway expanded to more than double its capacity and overall size, adding an additional 7 lines and 80 stations to the previously-existing 4 lines and 64 stations, including a new link connecting directly to the city's airport. Also, a fleet of thousands of buses, minibuses and official cars transported spectators, athletes and officials between venues.