A hidden "entrance to the underworld" built by the ancient Zapotec culture has been discovered beneath a Catholic church in southern Mexico, according to a team of researchers using cutting-edge ground-scanning technology.
The complex system of underground chambers and tunnels was built more than a millennium ago by the Zapotec, whose state arose near modern-day Oaxaca in the late sixth century B.C. and grew in grandeur as people created monumental buildings and erected massive tombs filled with lavish grave goods.
