Terminal 21 is super famous for food court. It’s very cheap and delicious. You can visit Terminal 21 via two major mass transits in Thailand, BTS and MRT. For BTS, Terminal 21 can be reached through exit 1. For MRT, you walk out at exit 3 and you’ll see Terminal 21. This shopping has a gimmick style which every floor is decorated as the major cities in the world. The floor that is connected to BTS is under Paris theme. Taking an escalator (not the long one) to 1F which is under Tokyo theme, the newest AIRPORTELs counter is on this floor.