(Terminal 1, Concourse B). Airports are big affairs with large budgets, but only O'Hare can boast a complete dinosaur skeleton. And not just any skeleton, but that of the largest animal ever to walk the earth. The Brachiosaurus skeleton is in Terminal 1's Concourse B indefinitely as part of a promotional agreement between the airport and the Field Museum in the Near South. It's certainly worth a look if you are in the terminal, and don't worry — you can't miss it.