Lauri, when I was a grad student at Stanford, we had to transport a ginormous magnet from New Jersey across the US to Palo Alto. It took a truck with 18 axles and I think 16 wheels per axle, 8 on each side. If I remember right, it weighed almost 300,000 pounds. Hard to fathom.
And then I took a flight on a 747. Fully loaded with fuel it weighs over 750,000 pounds. It has 78,000 titanium fasteners. Mind. Blown. I swore then I would never get over the wonder of flight and I never have.