10th place: The most interesting on the map of the Turkish admiral Piri Reis is the coastline of Antarctica. The map was compiled in the 16th century on the basis of Greek maps from the time of Alexander the Great. Antarctica is depicted on the map with reliability comparable to space imagery.
9th place: In 1995, on the island of Crete, archaeologists discovered a large fragment of some clay object, which depicts a device resembling a modern heavy helicopter in outline. The item was extracted from the cultural layer of 2 thousand years ago.
8th place: The tallest man-made mound in England hides an ancient stepped pyramid. Mysterious circles of crushed wheat and other drawings regularly appear in the surrounding fields.
7th place: Nazca is a mysterious plateau that has haunted scientists all over the world for a century. Nobody knows where the huge drawings come from.
6th place: The balls of Costa Rica are mysterious stone formations of a perfectly round shape. The balls have a wide variety of sizes - from ten centimeters to three or more meters in diameter. During aerial photography, it turned out that they are not scattered over the surface of the earth by chance, but constitute geometric shapes.
5th place: In Delhi, there is a seven-meter pole of pure iron. It is 1,600 years old and has not suffered from corrosion in the least. Paleoufologists consider the Delhi Pillar to be a special sign left by aliens.
4th place: Some of the most mysterious creatures on Earth are vestimentifera, two-meter worms living on the seabed at a pressure of about 260 atmospheres near the emissions of hot mineral springs, the water of which is saturated with hydrogen sulfide. Even if life on the planet's surface completely disappears, underwater oases will continue to exist.
3rd place: The most mysterious body in our solar system is Hector, a body located in a ring of asteroids. It changes its shine at an ideal frequency of seven hours. Such a periodicity is possible for a cylinder-shaped body.
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2nd place: In 1924, during excavations near the village of Taung in northwestern South Africa, a strange skull was discovered. Scientists who have studied the skull have hypothesized that the remains belong to a humanoid of unearthly origin. The skull is about 2.5 thousand years old.
1st place: In 1925, a stone human brain was discovered in the quarry of a brick factory in the city of Odintsovo near Moscow, perfectly conveying all the details. The find was made in a seam of coal formed at a time when neither man nor mammals existed in general.