Here's something ... which is fun puzzle that you can try from home (with a tube map) without you even needing to make a journey ... What's the shortest route which ticks off all 26 letters of the alphabet?
By travelling through Underground stations only I came up with a route that passes through 13 consecutive stations and takes just 4 trains. But can you beat it !?
There are also some alternative challenges to try as well, see the pinned comment below.
Note : Every solution MUST use Belsize Park, the only station on the network to contain the letter 'Z' !!
