The construction of the Great Pyramid, built during the Fourth Dynasty of the Old Kingdom of Egypt, around 2580-2560 BCE
This prehistoric monument in England, dating back to around 3100 BCE, raises questions about its purpose and how its massive stones were transported and erected without modern machinery.
Located in the Nazca Desert of Peru, these enormous geoglyphs, including various animal and geometric shapes, were created between 500 BCE and 500 CE.
Located in the Nazca Desert of Peru, these enormous geoglyphs, including various animal and geometric shapes, were created between 500 BCE and 500 CE.
Discovered in a shipwreck off the coast of Greece, this ancient Greek device from around 100 BCE is considered the world's first analog computer. Its purpose, complexity, and how it was created have puzzled researchers.
Described by Plato in his dialogues "Timaeus" and "Critias," Atlantis is said to have been a highly advanced and powerful civilization that mysteriously disappeared around 9,000 years ago.
The Sumerians, one of the world's oldest civilizations, left behind a list of kings and their reigns, including some remarkably long lifespans. The accuracy and origins of this list are still debated.
Found among the Dead Sea Scrolls, the Copper Scroll is unique because it contains a list of hidden treasures, but the locations described remain a puzzle.