Richard Ayoade takes a ruthlessly efficient approach to travel. In 48 hours he covers everything a city has to offer.Episode 1 - BarcelonaRichard and actor Kathy Burke do Barcelona in 48 hours, including some far-out cuisine, Cava tasting, a guided tricycle tour and surrealist artist MiroEpisode 2 - IstanbulRichard and comedian Adam Hills embark on a whirlwind visit in Istanbul, including a boat trip, a massage, a very close shave, and some haggling at the Grand BazaarEpisode 3 - IcelandRichard takes actor Jessica Hynes on a whirlwind weekend away to the stunning scenery of Iceland, for waterfalls, glaciers, geysers, whales, rotten shark and elf schoolEpisode 4 - MarrakechRichard and actor Stephen Mangan eat steamed sheep's head and go hot air ballooning and camel riding on a quickie weekend trip in Morocco