Hong Kong is a Special Administrative Region in China.
Bart visited it during his time as a courier and delivered a pair of eyeballs. Seymour Skinner was on holiday whilst Bart was a courier and spotted him in the airport.
The Simpson family embarked on a Junk from Hong Kong back to America after Selma received her adopted baby Ling.
The Skyline of Hong Kong seen in the background. The Bank of China is visible on the far right.
Hong Kong Airport.