A380 and 747

CHANGI AIRPORT, Singapore--On a recent trip to Nepal, I had the opportunity to spend about 18 hours at the Changi Airport, a transit hub I'd always heard was one of the most advanced and tech-friendly in the world.

It's also the home of the first Airbus A380 in the world--Singapore Airlines was the first carrier to take delivery of the behemoth double-decker airplane. While many airlines fly them today, they seem especially at home here.

Shown on the airport's tarmac are two of the most iconic airliners: a Qantas A380 (left) and a Singapore Airlines 747-400. They are not quite side by side, so the perspective is an illusion. The A380 is the world's largest passenger plane and, even though it's not all that much larger than a 747, it is still one gigantic airplane.