A metro train passes through an apartment building in chongqing municipality, China.
The case in Chongqing, China, where an apartment building has been built with a train running through it. Not only does the light rail passenger train pass through the 19-story residential building, but it also has a transit stop there. So apartment residents can just go to the sixth through eighth floors to hitch a ride.
Chongqing, located in southeast China, is a sprawling metropolis packed with 49 million residents, so architects and city planners have gotten really creative in making transportation and residential projects coexist in China's so-called "Mountain City."