We took into consideration a number of factors here, including scale, creativity, innovation and just plain nostalgic love.

Legos have come a long way since the first sets arrived in the U.S. in the early 1960s. What began as a simple child’s toy has mushroomed into an empire of theme parks, movies, and, of course, bricks.

If you have any of these kits in your collection, you might be sitting on plastic brick gold! Check out the most valuable LEGO sets!