[whoisyc]

Once upon a time you could take a train on the Chicago loop, ride it through the countryside at 90mph, and end up on the streets of Milwaukee like a streetcar.

https://en.wikipedia.org/wiki/Electroliner

It sounds crazy to say now but America used to have the best passenger rail infrastructure in the world.

[tptacek]

It is... still possible to get on a train in the Chicago loop and take it to Milwaukee.

[qingcharles]

Sure, but not directly from the L tracks :)