Some are easy to identify and others… not so much. Most of us can find the sign pointing us in the direction of mass transit that is common to our most familiar cities, but when we're traveling to foreign lands, what exactly are we looking for?
The Paris Metro sign, the NYC subway and London's Underground symbol (arguably the most notable one of all) are pretty easy to identify, but when you're in a lesser known city, how do you know what you're looking for?
For a little guide to all things mass transit, click through the gallery below so you know what you're looking for next time you find yourself in a foreign land.
Which cities did we miss? Submit your photos here or email them to firstname.lastname@example.org.