Gizmodo has an exclusive video and feature of one of the most heavily guarded secrets in Lego: the security vault where they store all the Lego sets ever created, new in their boxes. 4,720 sets from 1953 to 2008. Really amazing stuff and a trip down memory lane to every person who has played with the magic bricks. All combined, the collection must be worth millions, not only because of the collector value, but also because Lego uses it as a safeguard in copyright and patent cases.