World's Largest Jigsaw Puzzles

We're sometimes asked what a "normal" size jigsaw puzzle is for an adult, usually by someone who is looking to buy a puzzle as a gift for someone else. My typical answer is 1,000 to 3,000 pieces. A 1,000-piece jigsaw puzzle is challenging enough for most of us, but the 2,000-piece and 3,000-piece puzzles are not out of the question for someone with some experience of putting together jigsaw puzzles of lesser size.
There are, of course, gift-givers who wish to be extravagant, including those among us who give ourselves gifts. These individuals are not interested in normal-sized puzzles; they want to know about the largest jigsaw puzzle in the world.
Competition for the title of "World's Biggest" has gone back and forth now for some years between two quality jigsaw puzzle manufacturers; Clementoni of Italy, and Ravensburger of Germany.
Clementoni currently offers two puzzles, each of which consist of 13,200 pieces. The finished size for either of these jigsaw puzzles is 291,4 x 134,4 cm - pretty big! One is a work of classical art, Tiziano's Sacred and Profane Love. The other is a modern work by Lassen, entitled Lahaina Vision.

Clementoni's largest jigsaw puzzle 13200 pieces lahaina vision painted by lassen lahainavisionpanoramic

I think that is 53" X ll4" - Huge :0)

Ravensburger offers two different 18,000 piece puzzles, but the puzzles are composites, made up of four panels each, the reason probably being that, with very large puzzles, color continuity becomes an issue in the printing process. The puzzles are entitled Four Historic World Maps (shown below) and Tropical Impressions. These puzzles each have a suggested retail price of $149.99, plus shipping.
If you're wondering how anyone ever puts such a huge puzzle together, it is helpful to know that they are packaged in sections; that is, inside the box, there may be eight plastic bags, each holding the contents of one particular section of the puzzle. We've spoken to one gentleman who believes this is somehow "cheating;" he opens all the bags at once, blends the pieces together, and then assembles the puzzle!

(from About.com)