World's Most Unexplained

The Cecil Hotel in LA has earned a notorious reputation for death and violence. Experts investigate why it has become a magnet for ghosts and serial killers. (S1, ep 7)

Millions mourned the death of Elvis Presley in 1977, but he's been spotted hundreds of times since. (S1, ep 8)

Hypnotherapist Adrian Finkelstein and his patient claim that they are Paul Bern and his wife, actress Jean Harlow, reincarnated. (S1, ep 10)

Experts and eyewitnesses explore some of the most-extraordinary happenings at Myrtles Plantation that science can't explain. (S1, ep 3)

Numerous aviation disasters are associated with the number 191, leading many airlines to refuse to schedule a flight 191 out of skepticism and fear. (S1, ep 4)

Residents of a village reported seeing a statue of the Virgin Mary move, but some believe the phenomenon was just an optical illusion or a prank. (S1, ep 5)

Experts investigate whether a controversial union leader's disappearance is linked to the mob or if he went missing on his own accord. (S1, ep 2)

The White House is one of the most-famous and most-haunted residences in the world. Experts investigate claims of extraordinary paranormal activity. (S1, ep 6)

A priest, showing the same crucifixion wounds as Jesus Christ, claims to have suffered from stigmata. Experts investigate whether his story is true or just a religious hoax. (S1, ep 1)

People reveal details from their past lives as celebrities, while experts investigate evidence that suggests death may not be the end of our existence. (S1, ep 9)

In 1977, schoolchildren spot a cigar-shaped aircraft in Wales. The sighting transforms the quiet seaside town into a UFO hot spot. (S1, ep 11)

Alleged sightings of leprechauns and fairies are nothing new in Ireland. Experts debate whether these Celtic creatures are fact or fiction. (S1, ep 13)

Experts investigate if a mysterious caller had inside knowledge about the assassination of President John F Kennedy. (S1, ep 14)

Since his death on June 25, 2009, some fans have maintained that Michael Jackson is alive and in hiding. (S1, ep 12)

Investigate extraordinary events that defy scientific explanation. World's most unexplained delves into spontaneous human combustion. Should you be afraid? (S1, ep 15)

Amersham, a small town 30 miles north of London, is reputed to be the most haunted town in the world. Why do so many people for a bygone age haunt Amersham's streets and inns? (S1, ep 16)

Experts investigate why religious apparitions appear on seemingly normal objects to seemingly normal people. Is it blind faith or supernatural phenomena? (S1, ep 17)

Paranormal experts and skeptics explore the mysterious world of psychics. Is it a talent, a supernatural gift or a hoax? (S1, ep 18)

What happens when people take their numerophobia too seriously? Experts investigate why certain numbers incite fear and panic in people. (S1, ep 19)

Believers and skeptics debate the origins and meanings of the mysterious formations known as crop circles. (S1, ep 20)

Experts investigate whether centuries-old paintings of aliens and UFOs are artistic renderings of real sightings, a coded message for humankind, or just a coincidence. (S1, ep 21)

Experts investigate if a series of house fires across the UK are linked to an allegedly cursed portrait. (S1, ep 22)

'Death shall come on swift wings to him who disturbs the peace of the King,' so the inscription goes. Is there truly a curse that haunts the original discoverers of Tutankhamun? (S1, ep 23)

A strange creature was reportedly seen in a wooded area of Massachusetts by different people, all giving similar descriptions. Coincidence, collusion, or a genuine mystery? (S1, ep 24)

A hoard of golden coins was found in the prospecting district of California. Where did they come from and why did the owners never claim them? (S1, ep 25)

What is the Voynich Manuscript, and what secrets does the mysterious 500-year-old document hold? (S1, ep 26)