Sign In
We'll never share your email with anyone else.
Reset Password

Enter your email address and we'll send you a link to reset your password.

Back to Sign In



Poster The Mystery of Chaco Canyon 1999

The Mystery of Chaco Canyon 1999

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly cycle of the sun and the 19-year cycle of the moon. How did an ancient civilization, with no known written language, arrange its buildings into a virtual celestial calendar, spanning an area roughly the size of Ireland?



Download : HD
a a a a a a a a a a a a a a a ha a a a a a a a a a a a a a a