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
Ravensburger Paradise Sunset 18,000 Piece Jigsaw Puzzle for Adults – Softclick Technology Means Pieces Fit Together Perfectly
Ravensburger At The Waterhole - 18000 Pieces Puzzle - Walmart.com
Ravensburger 18000 piece Historical Map pt 2, almost done. Gold hell follows to complete the last pieces on the perimeter : r/Jigsawpuzzles
Amazon.com: Ravensburger Castle Through The Seasons 18,000 Piece Jigsaw Puzzle for Adults - 16137 - Every Piece is Unique, Softclick Technology Means Pieces Fit Together Perfectly : Toys & Games