Sun-Earth Day Presents: Ancient Observatories, Timeless Knowledge

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Ankor Wat

This massive temple at Angkor Wat in Cambodia was constructed in the first half of the twelfth century by King Suryavarman II (r. 1113-ca. 1150). Angkor Wat is surrounded by a 200-m.-wide moat, crossed by a bridge on the west.Learn More»

Photo Credit: Andy Brouwer