Since 2007, numerous severed human feet -- typically wearing running shoes or hiking boots -- have washed up on the coastline of British Columbia, Canada.

In 1966 and 1967, rural West Virginia is plagued by a series of sightings of a large flying man with ten-foot wings and red glowing eyes; local folklore dubs the creature the Mothman.

In 1855, residents of Devon, England, awake to find 40 miles of hoof-like footprints in the snow.

More than 160 years after a doomed Arctic expedition, archeologists discover the wrecks of the HMS Erebus and the HMS Terror; some fear the wrecks' dark legacy of death will resurface now that the ships' final resting places have been disturbed.

When an unidentified radar blip is detected over Lake Michigan in 1953, an Air Force pilot is dispatched in an F-89 Scorpion to intercept and disappears without a trace; no wreckage is ever found.

George Takei gives the latest news and updates on his explorations into some of history's greatest mysteries, including the Mothman, the Devil's Footprints, the Severed Feet of the Salish Sea, the Kinross Incident, and the Curse of the HMS Terror.