Wikipedia
Tiantongyuan is an apartment complex and neighborhood in northern Beijing's Changping District. As of April 2008 it was reported to have over 400,000 residents, and is one of the largest such complexes in Beijing and the biggest community in the world.Most residents in Tiantongyuan work in downtown Beijing, making Tiantongyuan one of the commuter towns in Beijing. Tiantongyuan North Station is the northern terminus of the Beijing Subway Line 5. There are two other Line 5 stops in Tiantongyuan as well, Tiantongyuan Station and Tiantongyuan South Station. Many Beijing public buses serve the community with two large bus hubs being at the Tiantongyuan North subway station and Tiantongyuan North neighborhood.
Tiantongyuan is divided into Tiantongyuan West , Tiantongyuan East , Tiantongyuan North , Central Tiantongyuan , and Old Tiantongyuan (本区 or 老区); each such neighborhood is further subdivided into sections 1, 2, and 3 (except for Central Tiantongyuan, which is divided into North, South, East, and West and east north).
Both subway Line 5 and T3 express bus pass the community.