This plane is huge. It carries up to 550 passengers (in its 777-300 incarnation, all flying coach). Its maximum takeoff weight is 660,000 pounds, heavier than a fully equipped B-52.
It seems all the more impressive on the runway, because it deceptively has the same appearance and proportions as its smaller cousin, the Boeing 737: 2 engines mounted on the wings, rear fins mounted on the fuselage, etc. Only when you see an actual 737 scoot in front of it do you realize how colossal the thing is. The tail fin has about the same square footage as my old studio apartment.