21
votes
2answers
4k views

What is the fastest theoretical route for the London “Tube Challenge”?

The "Tube Challenge" is the accepted name for the Guinness World Record attempt to visit all the stations on the London Underground network in the fastest time possible. The rules are here. The ...
6
votes
2answers
388 views

Longest possible single-fare journey in London Fare Zone 2?

I've noticed that it is theoretically possible to perform an almost complete circuit of London by rail without leaving fare zone 2 and without having to swipe in / swipe out with an Oyster card ...