Something that we've known for a long time but that London's Tube system is the world's most expensive train journey.
It's not, as hackette Caroline Iggulden found out, a luxury excursion on the Orient Express, but rather a 43-second jaunt on the Piccadilly Line between Covent Garden and Leicester Square: 43 seconds covering 0.26km for a whopping £4.
That's 1.5 pence per metre, as the paper helpfully points out, easily topping the next most expensive short hop on the Tokyo Metro which comes in at £1.51. In New York, in contrast, "a subway ride costs £1.07, and in Rome just 67 pence and allows unlimited rides on tubes and buses for 75 minutes".