Arlanda Express, Stockholm

Connecting the main airport to Stockholm city centre, Arlanda Express trains, painted a gaudy yellow, run every 15 minutes during the day in the summer. With a journey time of just 20 minutes, they are easily the fastest way to cover the 40 kilometers. Right now a special offer enables two adults to travel together one way for 250 Swedish krona, while a single adult fare is 240 krona. The Arlanda Express is quick and comfortable: Don't even consider a cab. 7/10