The UnXplained

Humanity has launched satellites into outer space and submarines to the ocean floor, but the ground below Earth's surface remains shrouded in mystery. Are there profound secrets buried beneath layers of rock, or hidden in vast caves?

For thousands of years, humanity has been fascinated by the notion that man will one day travel through time. But what if time travel has already taken place?

Scattered across the globe lie mysterious ruins that are buried in sand-swept deserts, perched atop towering mountains, and shrouded in the heart of dense jungles. These age-old structures stand as silent sentinels from the past.

During the Middle Ages, the Vikings were infamous for being a bloodthirsty band of seafaring warriors. Is it possible that they were not the savage brutes we think of today -- but rather, a highly advanced civilization?

The men who've had the honor of being President of the United States are celebrated as esteemed leaders, their names immortalized in the annals of history. But there are many bizarre tales involving U.S. Presidents that defy explanation.

Throughout history, tales of inexplicable maladies to both the body and the mind have stirred morbid curiosity and palpable fear. Are these bizarre afflictions fabrications of the mind?

There are many puzzling artifacts from around the world that challenge everything we know about the technological capabilities of our distant ancestors.

There's nothing more fascinating than a code that can't be cracked. If history's unbreakable codes can be deciphered... could we unlock answers to some of the greatest mysteries of both the past and present?

World War II was the largest, and deadliest, conflict in human history. From 1939 until 1945, more than fifty nations engaged in harrowing combat -- and during that time, a number of intriguing and persistent mysteries were born.

With scientists discovering as many as 18,000 new animal species every year, isn't it conceivable that there could be real-life, flesh-and-blood monsters living among us?