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The secrets revealed of the incredible city in the clouds built by the Incas.

For decades, the mystery of the "Sailing Stones" has left many scientists puzzled and unanswered.

Researchers have developed a simulator that can feed information directly into a person's brain and teach them new skills in a short period of time, like in the classic science fiction movie "The Matrix."

Although they are a great archaeological find, the origin of the stone spheres remains a mystery to mankind.

The cave painting is considered to be the world's oldest record of two people kissing.

This is a real danger that we can face if we are not properly protected against space objects that are on a collision course with Earth.

The Bohol Hills are one of the main tourist attractions in the Philippines and their unexplained formation is surrounded by legends.

The earliest known astronomical observatory in the Americas was built by an unknown culture, long before the Incas rose to power in Peru and began to celebrate their Sun God.