The golden age of trains has pretty much been and gone. Although it is still the greenest form of travel for us, the romance of train travel died a long time ago, along with that came the death of countless railway stations that are not used anymore.
Metro – probably the fastest way to travel through the city. Sometimes the scene of pure chaos, but mostly it is a very nicely integrated machine that allows people to get from one place to another in a figurative blink of an eye. Let’s look at the biggest and best metro networks in the world.