USATODAY.com – Archaeologists may have discovered a tropical version of Stonehenge
By Stan Lehman, Associated Press
SAO PAULO, Brazil — A grouping of granite blocks along a grassy Amazon hilltop may be the vestiges of a centuries-old astronomical observatory — a find archaeologists say indicates early rainforest inhabitants were more sophisticated than previously believed.
The 127 blocks, some as high as 9 feet tall, are spaced at regular intervals around the hill, like a crown 100 feet in diameter.
On the shortest day of the year — Dec. 21 — the shadow of one of the blocks disappears when the sun is directly above it.
“It is this block’s alignment with the winter solstice that leads us to believe the site was once an astronomical observatory,” said Mariana Petry Cabral, an archaeologist at the Amapa State Scientific and Technical Research Institute. “We may be also looking at the remnants of a sophisticated culture.” [Read.On]