Washington Dulles Airport has the goofiest way of getting you from terminal to terminal that I've ever seen. They have these giant cargo trailers on wheels that dock at one end of the terminal, a driver then takes you to another terminal. To make them look odder, each one is mounted on huge 4x4 truck tires and has two giant fins sticking out of the top of them. Apparently trams weren't invented, or else someone is making a killing off the annual maintenance contract on these things. As you go from terminal to terminal, you'll see at least a 100 of these things cruising around the tarmac. Odd.