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What's with the blue pipes in Cologne, Germany?

I just came back from Cologne, and we noticed that there were large blue pipes above the roads at the end of the shopping district and running around the Rhine. We weren't sure what they were for, so if anyone could enlighten me, that would be great.

3 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    It is sort of a dark room you crawl inside and there you get mounted and pounded

  • Anonymous
    1 decade ago

    If you're talking about the pipes I think you're talking about, then the answer is:

    They had been used to pump water around. Though they're not really used anymore.

    Source(s): German NA
  • Anonymous
    1 decade ago

    The Blue Pipes are used to pump up Groundwater from the building site for the new suburban train...

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