VOICED: Digging deep into Teotihuacan's mystery

What led to the accidental discovery of the tunnel in Teotihuacan?

• An earthquake

• A volcanic eruption

• Heavy rains

• A construction project

What is the believed significance of the chambers beneath the temple of the plumed Serpent?

• They were used for storage

• They were used for religious ceremonies

• They were marketplaces

• They were burial sites for leaders

Which technology was used to explore the tunnel before archaeologists entered?

• A robot with a camera

• Drones

• Underwater cameras

• Satellite imaging

What did the scanners and radar help discover in the tunnel?

• Ancient tools

• Buried bodies

• Gold artifacts

• Ceremonial masks

What do tool marks in the ceiling of the tunnel potentially reveal?

• The materials used in the tunnel

• How the tunnel was constructed

• The age of the tunnel

• The purpose of the tunnel