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7 Answers
- 1 decade ago
I'm having a hard time thinking of non-man-made structures. I mean things like the Grand Canyon and mountains are more natural features than structures. Doesn't the word structure imply man-made?
- 1 decade ago
The Great Wall of China, The Pyramids , The house or condo or whatever dwelling you are in when you typed that Question.
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- 1 decade ago
the arch in st. louis, the colusseum in rome, the bay bridge in san francisco, the washington monument in d.c.
- 1 decade ago
if it didn't grow from a seed, then it is man-made.....LOOK AROUND .....you must not get out much