Prague

   This modernistic underground station in Prague was completed in 2008 as an extension to the 'Red C' Line linking to the large residential area of Prosek. It is also the seventh busiest metro system in Europe.
There are no internal columns, and the roof is supported on two giant arches with the open glass hall allowing daylight to reach the platforms below. From above, the station looks like a large fish as seen in the Google map below.