Mysteries From Ancient Times That Still Defy Explanation

Hypogeum of Hal Saflieni

The only remaining intact example of an underground labyrinth construction in all of Europe, the Hypogeum of Hal Saflieni in Malta was only discovered in 1902. This puzzling labyrinth is believed by experts to have been used from 4000 to 2500 BCE. Though this labyrinth — carved right out of the rock surrounding it — is made up of three levels, one level stands out. One level, which has been labeled as the Oracle Chamber, is an indication that the carvers of this labyrinth actually had advanced knowledge of acoustics. If you were to stand in this chamber and speak at a normal volume, your voice would be amplified a hundred times and reverberate through the entire chamber.