The Nazca Lines
Giant Drawings That Only Make Sense From the Sky
In 1941, an American historian named Paul Kosok flew a small plane over the driest desert in Peru and looked down. Below him, scratched into the reddish-brown earth, were lines — hundreds of them — and enormous drawings of animals: a hummingbird wider than a jumbo jet, a spider with eight perfect legs, a monkey with a spiralling tail.
They had been there for over a thousand years. Nobody had noticed — because you can only see them from the sky.
The people who made them had no aeroplanes. They had no way to fly at all. So who drew pictures that only the sky could see — and why?
200 sq mi
The Nazca Lines cover an area of nearly 200 square miles of Peruvian desert — bigger than the city of New Orleans. Over 800 straight lines, 300 geometric shapes, and about 70 animal figures are etched into the ground.
300 feet
Longer than a Boeing 747 jumbo jet.
2,500 years
The oldest lines date to approximately 500 BCE.
<1 inch/yr
The extreme dryness preserved the lines for millennia.
The Evidence
Giant Geoglyphs
About 70 animal and plant figures — hummingbirds, spiders, monkeys, condors — drawn at a scale that only makes sense from the air. The Nasca people who made them had no aircraft of any kind.
Cleared Stones
The lines were made by removing dark, iron-oxide-coated surface pebbles to reveal lighter ground beneath. Wooden stakes and pottery fragments found at the site confirm the Nasca people were responsible.
Maria Reiche's Lifework
German mathematician Maria Reiche spent over fifty years studying and protecting the lines. She mapped over a thousand markings and believed they formed an astronomical calendar. Peru gave her a state funeral when she died in 1998.
How the Mystery Unfolded
The Lines Begin
The Nasca people begin creating geoglyphs in the desert of southern Peru. The earliest figures are small — visible from nearby hills. Over centuries, they grow larger and more ambitious.
The Golden Age
The Nasca civilisation reaches its peak. Cahuachi becomes a major ceremonial centre. The most famous geoglyphs — the hummingbird, spider, and monkey — are likely created during this period.
The Collapse
The Nasca civilisation declines — likely due to drought, deforestation, and environmental collapse. The people scatter. The lines are abandoned. The desert preserves them.
First Modern Sighting
Peruvian archaeologist Toribio Mejía Xesspe notices the lines while hiking in the foothills. From the ground, they look like paths. He presents his findings in 1939.
The Aerial Discovery
American historian Paul Kosok flies over the plateau on June 22 — the winter solstice. He sees the full figures for the first time from the air and calls them "the largest astronomy book in the world."
The Alien Theory
Erich von Däniken publishes Chariots of the Gods?, claiming the lines are alien landing strips. The book sells over 70 million copies. Scientists disagree — but the public is captivated.
World Heritage Site
UNESCO designates the Nazca and Palpa Lines as a World Heritage Site, granting them international protection.
AI Discoveries
Researchers from Yamagata University use artificial intelligence to discover over 300 previously unknown geoglyphs — many smaller and depicting humans and daily life scenes.
The People in This Story
Maria Reiche
A German mathematician who spent over fifty years studying and protecting the Nazca Lines. She mapped hundreds of figures, slept in the desert to guard them, and believed they were an astronomical calendar. Peru named an airport after her.
Paul Kosok
An American historian who flew over the Nazca Plateau in 1941 studying irrigation canals — and saw the enormous geoglyphs from the air for the first time. He called them "the largest astronomy book in the world."
Erich von Däniken
A Swiss hotel manager who claimed the Nazca Lines were alien landing strips in his 1968 bestseller Chariots of the Gods?. Scientists dismissed the theory, but the book sold 70 million copies and made the lines world-famous.
The Question That Remains
We know who made the lines. We know how. We know when. But we still don't know why.
Were the Nazca Lines an astronomical calendar, a prayer for water, a pilgrimage path, or a message to the gods? After eighty years of investigation, the answer is still genuinely open.
Read the full book to investigate every piece of evidence — then decide for yourself.
Get the Full Book
The complete Nazca Lines mystery. 9 chapters of evidence, theories, and a question only you can answer.
Part of the Lost Worlds Volume
Sunken cities, impossible structures, and civilisations that vanished before history began. What did the ancient world know that we have forgotten?
See all books in this volume →