For most organisms on Earth, rocks are objects, not food. But for one oddball microbe, desert limestone seems to have been on ...

It is the largest excavated underground city in the world and stretches more than 85 metres below the surface.

However, archaeologists have now discovered a network of ancient chambers and tunnels underneath the city using radar ...

Researchers explore the possibility of a secret passage that may have been used in ancient times for strategic, diplomatic, or commercial purposes.

Scientists Found Evidence of Unknown Life in Rocks (Constantine Johnny/Getty Images) 32,503 people played the daily Crossword recently. Can you solve it faster than others?32,503 people played the ...

From ancient tunnels to modern memorials, a week in the Holy Land offers a powerful blend of prayer, discovery and awe. Clockwise from left: A view of the Jerusalem model, showcasing how the city ...