What’s the greatest man-made structure in the world?

What’s the greatest man-made structure in the world?

6 Responses

  1. Mike H.

    IMHO that would have to be the Great Wall of China. A wall that is hand-built as long as it is (I believe I read that it is almost as long as the USA is wide), created several thousand years ago? No Doubt in my mind….

    Reply
  2. Darryl Raby

    Haggia Sophia in Instanbul. Impressive building, mosaics & the largest building in Europe until modern times.

    Reply
  3. kebond

    Acropolis, Hagia Sophia of Constantinople, Pyramids.

    Reply

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