As a kid, did you ever stop to wonder what you could build with K’NEX if you just kept playing with the toy for the next three years? Here’s the answer: a massive ball machine nicknamed the Citadel that fills an entire corner of a room and is made from more K’NEX than all the kids in your neighborhood have put together.
Check out Shadowman39's Flickr page for detailed shots of this creation, or just zone out and watch the video of it in action while you kill time ahead of the upcoming long weekend.
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