The cryptic drawings, known as petroglyphs, appear to show two men in helmets with strange weapons – proof that ancient astronauts came to Earth, according to some. The petroglyphs seem to show the strange figures in protective suits, while white lines also seem to be coming from the heads, with some suggesting that it depicts lights built into the helmets. The drawings in Valcamonica, near to the central Alps in northern Italy, are believed to be 10,000 years old and are part of a collection of more than 200,000 petroglyphs carved into the rocks of the valley. Most of the drawings are of symbols and animals, but a few, such as these ancient astronaut drawings, stand out for their bizarre nature. Conspiracy website Unknown5 said: "Believers in ancient alien theories point to these rock carvings as evidence of prehistoric alien visits to earth, and claim that the drawings were the people of the area recording what they were witnessing." In 1979, the collection of petroglyphs were