The Boeing Everett Factory is the largest building on Earth by volume — 472 million cubic feet, 98 acres under one roof, 777/777X final assembly happening live below the balcony. Future of Flight Aviation Center runs the 80-minute tour with Strato Deck access for landing-runway viewing. Pair with a Museum of Flight visit at Boeing Field — Concorde + Air Force One + the only B-29 + SR-71 outside Smithsonian. Decompression: oysters and a flight at Taylor Shellfish Capitol Hill, dinner at Canlis if you're feeling rich, then back to SEA.
Five quick questions, then we build the full itinerary — lodging, daily schedule, dining, bars, the group-chat message — and drop you into a Trip Room you can share with the crew.