China

China is a country in and its capital city is Beijing.

History
Bart visited Hong Kong during his time as a courier and delivered a pair of eyeballs. Bart ran into Seymour Skinner at the airport.

The Simpson family visited China along with Selma to bring her adopted daughter, Ling, home to Springfield.

Later, Bart got a job so he could get a minibike, and the job turned out to be helping agents of the Chinese government obtain technical secrets about the United States. When Bart later refused to give them the secrets, they threatened him. Homer told them that they didn't need Bart because he himself had a whole wealth of technical knowledge. The spies then decided to take Homer back with them to China, where he helped build a power plant for them. Unfortunately for the Chinese the plant blew up, and Homer ran away.

After Homer voted in the 2012 presidential election he was outsourced to China where he started to make USA flags in a factory. Ned Flanders was then deposited next to him so Homer jumped out of the window. He hit a net to stop suicides, which were just being installed, then hit the ground, still alive.

Non-canon
When Homer was pondered if it could be China that was the greatest nation on Earth.