Retail is only a small part of Cheonggyecheon, there’s a ton of work going on too. On one block there’s a dozen laser cutting shops. In another area there’s metal working, and even a cluster of glass blowers making neon and lab glass.
Laser cutting shop. It’s about the size of a garage. There’s a huge laser cutter and some material racks on the walls.
A metal working shop.
I know this street ! lol