Located in the town of Barikot, the structure likely dates to the second century B.C.E., according to a statement. It was built atop an earlier Buddhist temple dated to as early as the third century B.C.E.—within a few hundred years of the death of Buddhism’s founder, Siddhartha Gautama, between 563 and 483 B.C.E., reports Tom Metcalfe for Live Science.