The wobbly boulder has entertained or trapped tourists since 1895, but the placement of the four-ton rock happened long before that. Zirbel says glacier melt thousands of years ago moved a giant ...

Scientists say they have discovered humanity's oldest known drawing on a small fragment of rock in South Africa. The drawing is about 73,000 years old, and shows cross-hatch lines sketched onto ...

Archaeologists have uncovered a giant rock in the Colombian Amazon bearing ... The free-standing tabletop hill hosts 16 ...

Rock art found in the Amazon rainforest ... a prehistoric relative of the elephant, and giant sloths and Ice Age horses, researchers say. These drawings depict animals including snakes, deer ...