What is the man made structure (apart from the Great wall of China) on earth that is visible from space?

15 votes
Leaning Tower of Pisa
 
13% / 2 votes
Taj Mahal
 
27% / 4 votes
Eiffel Tower
 
7% / 1 vote
Chichen-Itza
 
7% / 1 vote
Beaver Dam
 
47% / 7 votes


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