Ancient peoples around the world seem to have designed their sacred spaces not only for ceremonial sights, but for ceremonial sounds as well, archaeologists say. In Peru, for example, a 3,000-year-old ...

This is the incredible moment a tour guide in Yucatan, Mexico on August 24 demonstrates an incredible phenomenon found at the Kukulcán Temple. He claps, and when the sound bounces off the steps, it ...