In the interest of full disclosure, I'm a Discovery Channel junkie and pulled apart nearly every appliance we owned as a child. The Boeing Factory Tour is an amazing experience. You get to see every facet of major body construction of Boeing's wide-body jets and you get to see it from a pretty close perspective. The tour lasts a little over an hour, but seems to last much longer given all the things you get to see and the amount of information dispensed from the friendly and informative tour guides. At ten bucks, this tour is a complete bargain. Ending up in Everett, you're close to a couple of great places to eat along the water (Ivar's, Anthony's) to make a nice afternoon drive out of the trip up from Seattle.
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