Scientists have found a second pyramid hidden deep within the Kukulkan pyramid at the Mayan ruins of Chichen Itza in Mexico. Researchers announced the discovery Wednesday of a pyramid 10 meters tall (33 feet) inside two other structures that make up the pyramid also known as El Castillo, or the Castle. Read more: 3,000-year-old community has been unearthed Earlier excavations in the 1930s had alre
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