LEGO is a brand that makes possibly the most popular toy ever. It is a brick thing that can be used to build things. Many themes have been made with subthemes and sets in those subthemes. It has recently been LEGO's 80th anniversary, and more and more sets are being made and discontinued.
Brickipedia is one of the wikis LSCStealthNinja uses. It is all about LEGO and has more than 22,000 pages.