A mapping expedition in the Tlayócoc cave in Mexico led a professional cave explorer to a hidden chamber containing shocking ...

Archaeologists working in Odesa, the Black Sea port city in southern Ukraine, have announced a pair of discoveries that illustrate the city’s long and international history. First came news that ...

For centuries, the mystery lingered beneath Milan’s streets — and now, it’s no longer just a legend. Secret tunnels, sketched by Leonardo da Vinci in 1495, have finally been uncovered beneath Sforza ...

The underground tunnel system of Hukok in Lower Galilee provided escape for Jews revolting against Roman rule. A team of volunteers also recently discovered a stash of 22 deliberately hidden—and ...