Metro Arts and Architecture

Some Metros are wonderful and interesting. The audience is captive while waiting. All cities with looooong art galleries should be applauded.
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Metro Arts and Architecture
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Subways need not be boring or dreary! Many operators of metros, subways or underground railways want to attract more passengers with good station design. This often means extra effort and higher costs for the metro operators but it seems to pay when a metro is more than just a means of transport but something the residents can be proud of.
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Read below which metro systems double as the world's longest art galleries and in which cities you can see stunning underground palaces, museums, aquariums, an ancient chapel, or the world's first example of computer-generated architecture - or simply user-friendly and aesthetically pleasing underground stations.
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http://mic-ro.com/metro/metroart.html#Athens