Chichen Itza is just one example.
The Gulf of Mexico is a natural feature.
yes
Fidel Castro Worlds richest man
Livi's are the most famous man made jeans...
Adobe houses.
Chinampas.
Natural
No. It is a natural gulf.
William H. Bonney or Billy the Kid.
10
None. There is only the man-made border that separates the US from Mexico.
roro