A look at extraterrestrial mysteries, including close encounters, crop circles, Area 51, ancient texts and UFOs.

A look at legendary beings, including werewolves, angels,vampires, the Loch Ness Monster, Chupacabra and Bigfoot.

A look at sacred sites, including the Giza Pyramid and the Chartres Cathedral.

A look at extraordinary abilities, incuding extreme strength and endurance, telepathy, clairvoyance and paranormal empathy.

A look at mysterious writings, images and relics, including Peru's Nazca Lines geoglyphs, the Voynich manuscript and China's Terracotta Army.

A look at paranormal phenomena, including ghosts, apparitions and spectral curses.

A look at megastructures, including Mexico's Olmec heads, Easter Island's moai statues, Jordan's ancient city of Petra and Armenia's Geghard monastery.

A look at sites with alleged healing powers, including the grotto of Lourdes, Peru's ancient Machu Picchu ruins and the Amazon rainforest.

A look at sacred texts, including the Bible, the Book of the Dead and the Tao Te Ching.

A look at mysterious ancient cultures, including the 12 cities of the Indus Valley, the Forgotten Kingdom of Tibet and the lost continent of Lemuria.

A look at revered religious artifacts, including the Holy Grail, Buddha's Tooth, the Ark of the Covenant and the Shroud of Turin.

A look at mysterious cults and orders, including the Freemasons, the Knights Templar, Skull and Bones, and the Hermetic Order of the Golden Dawn.

A look at scientific mysteries, including water memory, morphic fields, time travel, the placebo and nocebo effects, and virtual reality matrices.