How far is Beijing Capital Airport from the energy-saving building?

Bus route: Commuter bus → Metro Line 2, with a total distance of about 3 1.3km.

1. Walk about 280 meters from Beijing Capital International Airport and arrive at Gangshan Village Station.

2. Take the commuter bus, pass three stops and arrive at Dongzhimenwai Station.

3. Walk about 820 meters to Dongzhimen Station.

4. Take Metro Line 2, pass 5 stops and arrive at Xizhimen Station.

5. Walk about 870 meters to the energy-saving building.