Art Nouveau Disney Princess Panoramic Puzzle by Clementoni, 1000 pieces. The puzzle that took me six years to complete...only because I completely forgot I had it. Eight hours total to complete. :
Clementoni 1000 Piece Puzzle Panorama Disney Villains | MYER
Amazon.com: Clementoni 39659 Classics 1000pcs Disney Joys Panorama 1000 Pieces, Made in Italy, Jigsaw Puzzle for Adults, Multicolor, Medium : Toys & Games