The UnXplained With William Shatner

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 people to explore oceans and deep lakes more than ever before, nobody knows what they will find.

All over the world are forbidden triangles that are mysterious regions where ships, planes and people enter and then just disappear; they are found in Bermuda, Alaska, Japan and elsewhere.

Throughout human history, many cultures have used sacred rituals to express their spiritual beliefs; there are many rituals that are thought to unlock supernatural powers.