Moscow Metro

After using the Seoul Subway system for a year, I was interested in using the Moscow Metro. Due to some rigorous hostel searching in Moscow when we first arrived (Lonely Planet's getting an email from me...), we became very familiar with the metro the first day in the city.
At first glance, it's a bit darker and older looking, but at certain stations, Craig and I would just stand in awe at the amazing architecture that was all under the city.
I read somewhere that the first station was built in 1935 and most of the earlier stations were built deep, designed to double as a bomb shelter. The escalator going down to the subway took forever, but then you have time to enjoy the artwork.

I've now become a little familiar with Cyrillic, so I could eventually read the names of the subway stations, but I quickly started to appreciate how Korea has all the subway stations Romanized under the Hangul.

I find Seoul subway to be cleaner, but nothing compares to the unique and historical artwork that is in the stations in Moscow.