Visit Moscow's underground

This one might seem a bit weird, because it's not one of the places that we usually like to see when we're visiting a city... but Moscow's underground is different. According to the communist system that there was in the USSR, the beautiful buildings and the luxury had to be where everyone could see it and enjoy it, and what place is there more transited than the undergroud?
So, another of the things I'd like to do in my life is visiting this special and elegant underground.

Ride the Trans-Siberian railway

The Trans-Siberian is a train that connects the cities of Moscow and Vladivostok, in Russia. It's the longest railway in the world and it has such an amazing view. Of course, I'll have to save some money before I can get to catch this train... but, It'll be worth it, because it must be a beautiful trip along the biggest country in the world!