Azerbaijan's Gobustan Petroglyphs

This nature wonder were only discovered through accident when a group of men go in there to quarry for stones in 1930. Since the area are abundant in boulders and rock formations, one quarry worker noticed the unusual carvings on the rocks. They also discovered these man-made caves where more of the drawings can be found. One of the scientist studied these paintings is the world-renowned anthropologist Thor Heyerdahl.