Many artifacts were discovered across the world, which indicate that advanced ancient civilizations existed at some point.
These artifacts are considered the out-of-place artifacts. They show the level of technological advancement that does not correspond with the time of their origin.
Some of those out-of-place artifacts will be listed further in this article.
2,000-year-old batteries – In 1938, German archaeologist Wilhelm Konig discovered Clay jars with asphalt stoppers and iron rods which had the ability to generate more than a volt of electricity.
Ancient Egyptian light bulb – A model of the bulb was created on the basis of the relief found in
the Temple of Hathor at Dendera, Egypt. This relief shows figures standing around a large light-bulb-like object.
Great Wall of Texas – Farmers in Texas discovered a well that was some 200,000 to 400,000 years old. Some believe that it is man-made, while others consider it a natural formation.
1.8-billion-year-old nuclear reactor – Uranium ore from Oklo, in Africa’s Gabon Republic was extracted from a site which functioned as a large-scale nuclear reactor and was made 1.8 billion years ago.
Sea-Faring map makers before Antarctica was covered in ice – A map from 1513 made by Turkish admiral and cartographer Piri Reis shows details of Antarctica before it was enclosed with ice.
2,000-year-old earthquake detector – The first seismoscope was made by Zhang Heng in 132 A.D.
150,000-year-old pipes – Pipes discovered in caves near Mount Baigong in China were dated back to 150,000 years ago.
Antikythera Mechanism – Greeks built an ancient mechanism around 150 B.C. This mechanism was able to determine astronomical changes with great precision. Its features are not typical even in the modern watch making.
Drill bit in coal – A mysterious object was found captured within coal about 22 inches thick. John Buchanan presented this object at a meeting of the Society of Antiquaries of Scotland on December 13, 1852.
2.8-billion-year-old spheres – Some believe that spheres discovered in mines in South Africa were made by an ancient man, while others claim that masses of mineral matter formed them naturally.
Iron pillar of Delhi – This pillar consists of 99.8% pure iron and it seems to be 1,500 years old.
Viking sword Ulfbehrt – The discovery of a Viking sword Ulfbert , dating from 800 to 1000 A.D. left the archaeologists puzzled. Such technology became available to modern man in the Industrial Revolution 800 years later.
100-million-year-old hammer – This discovery was made in 1934 in Texas. The hammer was encased in a rock that is more than 100 million years old.
Prehistoric work site – The discovery of ancient tools was documented in 1820. Wooden tools turned into a rock and it was concluded that people were present before the limestone formed around these objects.
Million-year-old bridge – A bridge was built a million years ago between India and Sri Lanka. Even though many believe that satellite images of this actually show something that was formed naturally, some believe that it represents the remains of the ancient bridge.
500,000-year-old spark plug – A spark plug encased in a geode was discovered in 1961. Based on analysis of the fossils found around the device, it was concluded that it was 500,000 years old or older.
Prehistoric wall near Bahamas – Large rock wall was discovered in 1968 off the coast of the Bahamas. Based on the analysis of archaeologist William Donato, the structure was 12,000 to 19,000 years old and its purpose was to protect a prehistoric settlement from waves.