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Things To Do in Brooklyn

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P.S. 321 Flea Market

7th Avenue between 1st & 2nd Street, Brooklyn, New York

Featured Review : This Park Slope outdoor flea market is housed in front of local Public School 321 every Saturday and Sunday, year-round. Find everything from brushed metal filing cabinets, an antique cedar armoire, a second-hand red lea...See Full Review

  • #358 most popular
    thing to do in Brooklyn
  • Avg. User Rating:
    3 out of 5 stars

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P.S. 321 Flea Market Reviews

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Best of IgoUgo

Flea Market

  • 4 out of 5 stars by Maggie May from Brooklyn, New York
  • July 24, 2025
Quote: This Park Slope outdoor flea market is housed in front of local Public School 321 every Saturday and Sunday, year-round. Find everything from brushed metal filing cabinets, an antique cedar armoire, a second-hand red leather mod jacket, to... Read the full P.S. 321 Flea Market review

From journal It's Better in Brooklyn (well, in Park Slope, to be exact)