World's Most Unexplained

The father of all alien abduction stories, but what really happened to the Hills that night? Was this a real case of aliens among us or a couple just looking for attention?

Can the human body really catch fire without cause? It's a phenomenon that's been reported since ancient times but science can't explain it and dismisses those that try.

Hero of the common working man or corrupt union official with mob ties? No matter what you believe it's fair to say Jimmy Hoffa made enemies easily. But where did he go that fateful July day in 1975?

One of the most recognisable buildings on earth, so many great historical figures walked its hallowed halls, do they walk them still?

One of the grandest, most historical buildings in Louisiana has a dark history, unsolved murder, vengeful ghosts and things that go bump in the night. This plantation has it all.

Can a number be cursed? Since the 1950's multiple air disasters have had one thing in common, the flight number 191. Coincidence or something more sinister?