11. Plac Wilsona, Warsaw, Poland The Soviets built some extraordinary metro stations but this 2005 effort, named after U.S. president Woodrow Wilson, showed that a capitalist Poland could come up with some beauties, too. www.cnn.com
3. Komsomolskaya (Koltsevaya Line), Moscow Baroque-style decor, historical mosaics and chandeliered ceilings resemble a grand ballroom.
12. Staromestska, Prague A different color for each station, they look like something from the dystopian film "A Clockwork Orange," but the bubble-wrap design actually strengthens the metal. www.cnn.com
9. Palais Royal -- Musée du Louvre, Paris In a city as beautiful as Paris, this unconventional station entrance at Place Colette still stands out. "Cheeky hipness" www.cnn.com
4. Olaias, Lisbon, Portugal The station is a whimsically colorful space that to this day holds its own as a modern work of art.
8. "Fosteritos," Bilbao, Spain Less than 20 years old, Bilbao's metro is the third-largest in Spain. Nicknamed "Fosteritos" ("Little Fosters") after their creator, Lord Foster.
7. Bockenheimer Warte, Frankfurt, Germany Depicting a train car crashing through the sidewalk, it leaves commuters either shocked or bemused, but rarely indifferent.
10. Admiralteyskaya, St. Petersburg, Russia St. Petersburg's newest metro stop proves that classic and modern design can coexist harmoniously.