MTR Airport Express, Hong Kong

Clean, fast and high-tech train service running every 12 minutes between downtown Hong Kong, Kowloon and the impressive Airport, the MTR is the way to ensure you catch a flight on time. During the 25-minute journey, the anxious can track their progress by watching little, blue bulbs light up on an electronic sign representing the 35-km train line. A single costs a very reasonable HK$100, but bewarned there are no trains between 1am and 6am. 7/10