4. Mary Celeste
The Mary Celeste was built in Canada in 1861 and soon became known as “cursed.”
Built in Nova Scotia under the name Amazon, the ship’s first captain contracted pneumonia nine days after taking command and died on her maiden voyage while aboard. Her second captain struck a fishing boat and had to take her back to port for repairs. While she was being repaired, a fire broke out in the middle ship. After this repair, she was sent out for her first trans-Atlantic crossing and struck another ship. All together, three captains died while aboard her. She was then sold to Americans in New York harbor and renamed Mary Celeste in 1868.
In 1872 Mary Celeste was loaded up with a cargo of 1,700 barrels of raw alcohol in New York’s East River, intended for winemakers in Italy.
The Mary Celeste was found adrift in the Atlantic, deserted and with all her papers missing except the captain’s logbook, which provided no answers. The compass had been destroyed and her lifeboat was missing. All provisions on board, including drinking water, were left.
Because all provisions and cargo were left untouched, piracy was ruled out. None of her crew was ever found.
The ghost ship mystery remains unsolved to this day.
5. The Valentich Disappearance
On October 21, 1978, 20-year-old Frederick Valentich was on a training flight in a Cessna 182L light aircraft over Bass Strait in Australia when he radioed to Melbourne air traffic control that he was being tailed by an unknown aircraft.
What Valentich described has since been attributed to a flying saucer. He also told air traffic control that his engines were in rough shape.
Air traffic informed him that there was no known aircraft at the level he described.
Air traffic control then heard a metallic, scraping sound over the radio and Valentich was never heard from again.
Despite the bizarreness of his disappearance, there is some suggestion that Valentich staged his own disappearance. He was a noted UFO enthusiast, and there is some evidence that he may have landed his plane elsewhere.
Still, after October 21, 1978, he was never heard from again.