18000 piece puzzle, 'Historical World Maps', 2002, Ravensb… | Flickr
Puzzle, Ravensburger, 18000 pieces for Sale in Seffner, FL - OfferUp
Puzzle Evening Walk in Paris, 18 000 pieces | Puzzle-USA.com
Ravensburger at The Waterhole - 18000 Piece Jigsaw Puzzle for Adults – Softclick Technology Means Pieces Fit Together Perfectly (17823) : Toys & Games - Amazon.com
I found an 18000 piece Ravensburger “Skyline's of the World” puzzle, with all 4 bags still sealed, at a local thrift store for $5 today 🤗 : r/Jigsawpuzzles