So there's Boeing field and then a factory in Everett and one in Renton... Where exactly do you go to do a tour of the facility? Google maps shows airplanes parked in all 3 sites. Confused

The Boeing factory tour takes place up in Everett. You are correct in that there are planes waiting off to the side at Everett, Seattle, and Renton manufacturing plants but the factory tour takes place in Everett.

Yes I have joined Boeing tour

I believe the factory tour is at Everett. The final assembly facility is over a mile long. There is about a $20 charge for the tour. Boeing Field is where the completed planes are flight tested. There is a wonderful museum of Flight there.

In Renton landing