1
vote
2answers
111 views

The biggest detour necessary between A and B [closed]

I really like to travel to special landmarks, such as the most northern part of each continent. I'm always looking for new things to travel to and therefore I'm looking now for the biggest detour ...
18
votes
3answers
2k 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 ...