Overtoun Bridge in West Dunbartonshire, Scotland was built in 1895 for ease of access to Overtoun house. While it is quite a nice looking bridge, it isn't anything special compared to most historical sites in Scotland... except for the fact that dogs crossing the bridge feel compelled to throw themselves to their inevitable demise.

This phenomenon has been occurring since the 1950s, with the bridge claiming the lives of dogs at an average rate of one per year.

Most of you have probably heard about the the Somerton man before - a corpse discovered propped up against a stone wall at Somerton beach on 1 December 1948 with no identification and the tags on his clothing removed. But did you know there was an eerily similar case in the 1970s?

With a burned body, a glamorous woman, multiple identities and mysterious men in black, the Isdal Woman mystery goes beyond most people's understanding.

Benjamin Bathurst was a British diplomat who disappeared without a trace in Germany in 1809. In a day and age when sophisticated forensics didn't exist, this might not sound too mysterious - especially during the Napoleonic Wars when murders, robberies and assassinations were common.

However, his disappearance was so notably sudden that many attributed it to a supernatural cause, even suggesting that he had hopped between dimensions. No, really.

While the tale of the Mary Celeste is one of the most enduring stories of missing ship crews, the Patanela is Australia’s very own maritime mystery. This ship vanished without a trace while approaching Sydney Harbour in calm seas in November 1988, leaving behind only a barnacle-encrusted lifebuoy and a message in a bottle.

The Devil’s Pool is a natural pool at the foot of three streams that run through the Babinda Boulders in Queensland. It’s a beautiful destination for a hike, and swimming pools in the area are clear and inviting.

However, venturing into the Devil’s Pool itself is a recipe for disaster - 17 people have drowned in the deceptively lush waters since 1959, and even more fatalities have been unearthed in earlier newspaper clippings.

Everyone knows how Hollywood legend James Dean died — young and badly, crashing his Porsche 550 Spyder on September 30, 1955. More than half a century later, the mystery of his supposedly “cursed” Porsche is as compelling as ever.