On Saturday at 5:00 p.m. this indoor market becomes the epicenter of Liberty City, the area's downtown social and economic heart. It's where you can get your hair done, a tattoo, and an airbrushed T-shirt, and watch a bootleg DVD (no need to drop $10 to see 16 Blocks) -- all before you even think about shopping for threads -- which is an event all its own. But really, a trip to Flea Market USA is not only about what's on the to-buy list, but also about witnessing true community.