This is the smallest city in the world with a metro and...

​@WhatOnEarthIsThisThing and I visit the smallest city in the world to have a full metro system. It's also very steep. Get your travel eSIM now with eSIM io: https://go1.esim.io/Lltr/lukeosullivan2 Watch more from my channel: https://youtube.com/playlist?list=PLDft76-0Qb78jltTNnVQ-RTmK-u-dxjpp&si=e1n4GXVjLnphpzcM Thank you to everyone at Transports publics de la région lausannoise for not only approving my filming request but also fact checking my script. Hi, my name's Luke. I make videos about things I think are pretty mad. That's usually cities, transport, and infrastructure -- but not always.