Star Wars. 18,000 pieces, Ravensburger. Took me six months to finish this. : r/Jigsawpuzzles
Jigsaw Junkies - New JVH and Largest Puzzle in the World!
Amazon.com: Ravensburger Antique Map Puzzle 3000 Piece Jigsaw Puzzle for Adults - 17074 - Softclick Technology Means Pieces Fit Together Perfectly : Toys & Games
Castorland puzzle 4000 pieces-the Underwater world - 1001puzzle.com
Amazon.com: Ravensburger Memorable Disney Moments 40,320 Piece Jigsaw Puzzle - The Largest Disney Puzzle in the World : Toys & Games
4000, Clementoni, Tiger's Family, Jan Patrik Krásný - Rare Puzzles