Cave of Altamira: Prehistoric Masterpiece

Discovered in Spain in 1879, the vibrant, multi-colored paintings in the Cave of Altamira are over 14,000 years old. The stunningly realistic bison and horses were created using charcoal and ochre, with artists using the cave's natural contours to create a three-dimensional effect. The find was so sophisticated that experts initially dismissed it as a modern forgery.