While nobody enjoys hanging around an airport for hours thanks to delays or long layovers, it's safe to say that once you're past security, the experience has greatly improved in recent years. Airports have spent millions revamping their terminals, and while most of the changes are functional, some of that money has gone toward improving both design and amenities. Airport architects have transformed once-bland spaces into light-filled, inspiring areas filled with everything from indoor tropical gardens to massive art installations. The buildings themselves can also be works of art, often inspired by their surroundings, whether they be the Pacific Ocean, prairie lands, or a series of rocks.