Hidden within the Himalayas, 155ft from the ground, these man-made caves are one of the World's greatest archaeological mysteries. The astonishing number of caves, some dug into the cliffside, others tunnelled from above are thousands of years old but who built them and why remains a mystery.
The Lost City of Atlantis is one of the oldest and most pervasive mysteries of the world. Since ancient times, people have been trying to locate Atlantis, which is believed to have submerged after an earthquake or tsunami. Greek philosopher Plato described Atlantis as a large island located near the Rock of Gibraltar, home of the most advanced civilization and being of unrivaled refinement with a glorious palace.
thought to be the oldest sundial in the world it is carved on a stone outside the tomb of Knoth in County Meath. The two holes in the center of the image probably held the gnomon (Object used to cast the shadow.)
Prehistoric spiral carving, Cornwall, England. Labyrinths and mazes have a history that can be traced back over 4000 years. The earliest examples are found carved on rocks in various parts of the world. Labyrinths have been a potent symbol in many cultures for thousands of years but mazes are of more recent origin, evolving from the earlier labyrinths around five hundred years ago
Stonehenge is a prehistoric monument in Wiltshire, England, about 2 miles west of Amesbury and 8 miles north of Salisbury. One of the most famous sites in the world, Stonehenge is the remains of a ring of standing stones set within earthworks.
At ground level, the ruins of Stonehenge appear somewhat random and chaotic, but a view from the air reveals the monument's circular order. The site started out modestly around 3100 B.C. as a wide ring of wood posts surrounded by a ditch and bank. The familiar enormous rock slabs, some brought from hundreds of miles away, were added to the interior over a period of about 1,500 years.