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In the days leading up to the Chernobyl disaster, workers at the nuclear plant claimed to have seen a creature known as the “Black Bird”.

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

The site is so impressive that it became known as the "Pompeii" of America.

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.

Sound is a powerful force that can be felt not only audibly but also physically, so it can evoke physical responses and alter the environment around us.

On some sunny day you must have come across this circle with the colors of the rainbow around the Sun.

For the first time in 2,000 years, tourists will have access to the ancient city of Hegra in Saudi Arabia.

For Jill Tarter, who participates in the project to search for intelligent life beyond Earth, contact with alien civilizations is just a matter of time.