As archaeologists dig through the ruins of the Temple Mayor, they are about to make a huge find. This 100-year-old building was the main place of worship for the Mexican people of the Aztec empire, so it's not surprising that they're about to find something interesting. However, this discovery could be so important that it could change how we think about this civilization. Archaeologists explored the Aru and Aztec temples and found a doorway to a lost world.

Watch the following video to find out more!