"Archaeologists did not expect to find such well-preserved structures in such a harsh setting," geologist Yves Fouquet said.

When people picture the Great Wall of China, they often imagine stone fortifications snaking over mountains north of Beijing.

Divers have discovered a long-submerged wall some 7,000 years old under the sea off western France, scientists said Thursday.

The urgency went up a notch in Mount Vernon Thursday night, amidst concerns about whether the levees and dikes will be able ...