Looks like limestone’s on the menu for some unknown microbe.

An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to exist. Ground-penetrating radar and laser scanning revealed that the ...

Quiet remains of far earlier worlds can be found on cliffs in some of southern Africa's harshest regions. Signs of changing ...

JERUSALEM — Under threat from Romans ransacking Jerusalem 2,000 years ago, many of the city's Jewish residents crowded into an underground drainage channel to hide and later flee the chaos unnoticed ...

During renovation of a street in Split, Croatia, archaeologists revealed an ancient Roman tunnel leading to cellars of Diocletian’s Palace. Photo from Vesna Bulić Baketić As workers dug up a street in ...