Time Out says
The Dongmyo Flea Market traces its history all the way back to the Joseon Dynasty. You can easily find ‘70s and ‘80s items here, including those grandpa cigarette pipes that you put the leaves in yourself. Goldstar (the old name for LG Electronics) televisions and cassette players are not only sold here but they actually work! Grandmas haggling with the younger ones for the junk straight from their home make for some humorous street scenes that can only be found here. I mean, as they say, one person’s trash is another’s treasure.