In 1939, Paul Kosok, a U.S. scientist, discovered some lines that disappeared into the horizon.

Not just lines, enormous drawings could be seen on the ground.

This is the skull collection at the Museum of Archeology in Lima.

Most are mal-formed.

For the pre-Incan culture a cone head and a flat forehead was a symbol of aristocracy.

It was not easy, but they managed to do it by placing two small boards, on the forehead and the nape,

which were gradually tightened

Almost better to be part of the common folk!

The lines and the drawings continue being a mystery "thanks" to the non-existing rain.

According to mathematician Maria Reiche, the lines and the drawings were the work of the Paracas and the Nazca.

The researcher spent 40 years of her life trying to solve the enigma.

The largest book on Astronomy in the world is drawn across the prairie by primitive cultures.

How did they draw them? Did they know how to fly?

A treatise on Astronomy lying across the Pan-American Highway.

Its significance remains a mystery.