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Many of us played with LEGOs when we were kids, but for some people, the fascination continues well into adulthood. Some of today's LEGO sets bear little resemblance to the boxy brick buildings we used to make.

So, what's up with those newfangled LEGO robots? And what does LEGO mean, anyway? If you don't already know, take this quiz to find out. If you think you do know, prove it!

Show what you know at HowStuffWorks.com.

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