8. London Heathrow Airport
Heathrow has consistently been ranked among the 10 best airports in the world. It offers various duty-free shopping and dining opportunities, including 105 restaurants, several headed by celebrity chefs. You can also arrange for a personal shopping service or get one of the eateries to pack you a picnic meal for your flight. The airport handles over 73 million passengers a year. Terminal 5, which was built in 2008, is the largest free-standing building in the U.K.
