LONDON — For anyone with even a passing acquaintance with London, the city's Tube map is as iconic as the red buses or the black cabs. But for the past few years, there's been something not quite ...

London’s tube map is a design classic because its interwar creator, Harry Beck, took the then-radical step of taking the messy, wibbly-wobbly intricacies of real-life train routes and turning them ...