Do you know any man made structures around 2500 meters?

Hi there, I'm looking for something man-made or very well known that is about 2500 meters in one of its dimentions (eight width or height or diagonal)

thanks

Answer:
There are. Looks like many roads and bridges qualify in the horizontal direction.

Ok, the Bingham Canyon Mine, Utah is one. It is 1.2 km deep and 4 km wide!

Bhanu, the great wall of china is visible from a vehicle orbiting in space, not from the moon.
i think its great wall of china,which is the only manmade structure visible from moon.....not sure:(

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