The Superintendence of Archaeology, Fine Arts and Landscape of Salerno and Avellino revealed in a Facebook post that, in order to allow for archaeological examination, the famed underground river had ...

Exploring underground rivers usually means navigating through complex cave systems. These waterways are formed over thousands ...

The Neglinnaya River (also called the Neglinka River) used to flow across Moscow from north to south, until it was buried underground in 4.7 miles (7.5 kilometers) of tunnels. Today it drains into ...

Eyewitness News got a rare look inside an underground portion of the Colorado River Aqueduct that runs through San Jacinto ...

F1 TYCOON Ron Dennis has started work on a £30 million mansion – complete with a secret tunnel to the River Thames, a huge ...

The Pertosa-Auletta Caves are a popular tourist site with two claims to fame: Italy’s only navigable underground river and Europe’s only preserved remains of an underground Bronze Age village.

In a country like Japan, where torrential rains and typhoons are recurring phenomena, water management becomes a vital ...

Deep underground, a construction crew is hard at ... This $615 million project is key to cleaning up the Potomac River. When heavy rain strikes a centuries-old neighborhood in Alexandria, Va., ...