The Amsterdam Metro: The Weirdest Metro System in the World

 https://www.youtube.com/watch?v=mQg0-CVJWrM

The North/South Metro Line in Amsterdam, widely regarded as one of the most challenging infrastructure projects in Dutch history. https://www.youtube.com/watch?v=CUryBWF47zU

https://www.youtube.com/watch?v=MvCW1zwPS9o