Hypogeum of Hal Saflieni
Malta’s Hypogeum of Hal Saflieni stayed hidden from the world until it was discovered in 1902. The Hypogeum represents the only intact example of an underground labyrinth construction in all of Europe. Experts believe that the structure was in use from 4000 to 2500 BCE. The labyrinth is amazing and puzzling.
There are three levels to the structure and the rooms and hallways were carved right out of the rock. Some of the chambers have ornate designs and curious paintings. One particular chamber seems to indicate that the carvers had advanced knowledge of acoustics. Called the Oracle Chamber, the room was carefully designed so that if someone speaks at a normal volume, their voice is amplified a hundred times and reverberates through the entire chamber.