Ancient ruins fascinate us, and some archaeological finds are so baffling that they challenge everything we know about the past. Will we ever learn the truth about these mysterious ruins? Or will they continue to present more questions than answers?

Genius is widely considered to be the ability to change the world in an incredible way: inventing new technology, deciphering the mysteries of the universe, or creating transcendent art. But where does genius come from? What is the X-factor that makes someone a genius? Is it "good genes"? A proper education? Or do geniuses tap into something much more mysterious and extraordinary?

More than 80% of the Earth's oceans remain unexplored, and in many ways, the underwater world is the final frontier. As new technology allows us to explore oceans and deep lakes more than ever before, what will we find? Will we discover profound secrets about the oceans? Underwater ruins that were lost for thousands of years? Or perhaps something even more extraordinary?

From the ancient Babylonian's to modern day urban explorers, mankind has always been fascinated by abandoned places. What is the allure that draws us to these post-apocalyptic landscapes? Is it simply morbid curiosity? Or, something harder to define? Could abandoned places actually be places of 'magic'--as the ancients believed? Well, that is what we will try and find out.

There are some events that are so destructive, so astounding, or truly miraculous -- that for the faithful -- they must be directed by the hand of the Almighty. The Great Flood. The Plagues of Egypt. Sodom and Gomorrah. Moses Parting the Red Sea.

The animal kingdom is full of deadly predators, and some of them attack in extraordinary and inexplicable ways. Do some animals strike back at humans for reasons beyond normal defense and hunger? Can they have emotions like anger or a desire for revenge? Despite our technological advancement, do animals pose a greater threat to us than we realize for reasons that we cannot explain?

Throughout history, humans have buried their dead in caves or chambers, in pyramids or in some form of a tomb; ancient tombs were visual memorials for the dead; in China, a vast necropolis was constructed as a way to connect to the afterlife.

All over the world, there are places and objects that are thought to be cursed; many people avoid these locations and things, believing they will bring harm, while others think that curses are nothing more than superstition and folklore.

Whether surviving freezing temperatures, diving unfathomable depths in one breath, or lifting weighty objects, superhuman feats never cease to amaze; pulling them off could be a matter of training, willpower, genetics, or something more mysterious.

Today, human civilization spans the globe, and there are more than 7 billion people on Earth. But how did humanity evolve? Although many around the globe believe that the divine hand of God placed homo sapiens on Earth, were there other kinds of human-like creatures--cousins of man--that could have been just as intelligent as us? And if so, might these other species still exist today, perhaps in remote parts of the world?

Humans can survive catastrophic injuries and deadly scenarios that defy the odds in ways that are inexplicable; these survivals challenge the best attempts to explain how anyone could live through such circumstances.

King Arthur, England's first pop culture superhero; his exploits inspired blockbuster movies and television series like "Middle Earth", "Harry Potter", "Game of Thrones" and "Star Wars"; the significant impact of Arthurian legend on Western culture.