1. The most valuable Lego set in the world, at $4,430.07, is the Ultimate Collector's Millennium Falcon from the Star Wars series. The 5,195-piece set is the second-largest Lego sculpture ever created, behind the Taj Mahal, and was released in 2007 at a retail price of $499.99. The set comes with five minifigures: Luke Skywalker, Han Solo, Chewbacca, Obi-Wan Kenobi and Princess Leia.  

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