Creepy and Mysterious Sealed Chambers Found in Ancient Aztec Ruins

Tourists visit the Templo Mayor archaeological site in Mexico City, Tuesday Dec. 1, 2015. Mexican archaeologists have discovered at the archaeological site a long tunnel leading into the center of a circular platform where Aztec rulers were believed to be cremated. The Aztecs are believed to have cremated the remains of their leaders during their 1325-1521 rule, but the final resting place of the cremains has never been found. AP Photo/Eduardo Verdugo

A strange and unknown hidden passageway was discovered in Templo Mayor, an Aztec pyramid that was one of the main temples the civilization used in their capital of Tenochtitlan, according to researchers this week.

The tunnel-like passageway apparently leads to two sealed chambers, and they might contain the cremated remains of leaders during the Aztecs’ 1325-1521 rule. The final resting place remains have never been found.

People visit the archaeological site of Templo Mayor, in Mexico City, on Oct. 3, 2006. AP Photo/Claudio Cruz

The National Institute of Anthropology and History said Monday that a team headed by archaeologist Leonardo Lopez Lujan found a 27-foot-long tunnel leading into the center of a platform where rulers may have been cremated. The entry of the tunnel was sealed with a 3-ton slab of rock, which was lifted in 2013, reported The Associated Press.

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When the rock was unsealed, researchers found the bones of infants and eagles. Two skulls of children between the ages of 5 and 7 were also located. Experts believe the infants were decapitated. And stone knives that were used in human sacrifices were also found.

The Templo Mayor archaeological site in Mexico City, on Tuesday Dec. 1, 2015. AP Photo/Eduardo Verdugo