There are mysteries in space, in the sea, on the earth. Some of the most interesting have to do with time, maps, and stone structures on earth. These include the Antikythera, the Piri Reis map, the Nazca lines, Stonehenge, and the Moai statues on Easter Island.
Antikythera
The remains of a clock-like mechanism determined to be a device for calculating the motions of the stars and planets.
Piri Reis Map
A map found in 1929 was determined to be drawn by Piri Reis in 1513 showing the western coast of Africa, the eastern coast of South America, and the northern coast of Antarctica. The map was drawn 300 years before Antarctica was discovered and shows the coastline under ice.
The Nazca Lines
Geolyphs, clearly visible only from the air, created by the Nazca who lived in Peru 2000 years ago.