The World’s Greatest Unsolved Mysteries

A possible UFO, an undiscovered serial killer and one of the greatest heists of all time

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Almost everybody loves a good mystery they can sink their teeth into. Put your Sherlock skills to the test with these unsolved mysteries we got from this Reddit thread:


The Gardner Museum Theft Case

On March 18,1990, two thieves dresses as Boston police officers walked into the Gardner Museum, tied up the guards and stole 500 million dollars worth of paintings including Rembrandts and Monets. Nobody knows till these day where the precious paintings are.


The Age of the Great Sphinx

Credit: Wikimedia/MusikAnimal

The Great Sphinx, the largest surviving sculpture from the ancient world, is one of the most enigmatic. Scientists and archaeologists have pondered over who the massive sculpture has been inspired by. One of the most recent mysteries is the age of the sphinx. Although the sphinx is believed to be constructed in 2540 BCE, the weathering patterns on the Sphinx are consistent with water erosion rather than wind and sand erosion. 10,000 years ago, Egypt was wet and rainy. Another theory is that the Sphinx’s location correspond with an astronomical map of the constellation Orion. The last time the stars were in that position was 10,500 years ago. The Great Sphinx’s age and purpose still remains a mystery.


What Happened to the Indus Valley Civilization?

M.Imran at English Wikipedia
M.Imran at English Wikipedia

The river valley civilisation that started about 2500 B.C.E. was a prosperous one. They were well-planned and peaceful. But suddenly, at around 1700BC the civilisationn started to fall apart and people started to abandon cities. Why? Some historians believe trade with Mesopatima stopped, some believe there was a great war, whereas some are of the opinion that the river flooded and changed direction leaving the land dry.


The Zodiac Killer

Credit: Wikimedia/ En tecknare i USA baserat på vittnesmål
Credit: Wikimedia/ En tecknare i USA baserat på vittnesmål

Zodiac was a serial killer who was active in California during the 1960s and 1970s. He is believed to have killed around 37 persons, but police could only confirm seven. The killer even sent taunting letters with cryptograms to newspapers and civilians. His identity has never been confirmed and the San Francisco Police Dept. (SFPD) has officially closed its Zodiac homicide investigation in 2004, 35 years later. The Zodiac killer may still be alive, although he would be quite old by now.


The Mystery of the Somerton Man

Credit: Australian police. File originally uploaded on English Wikipedia in November 30, 2008 by Bletchley
Credit: Australian police. File originally uploaded on English Wikipedia in November 30, 2008 by Bletchley

On 1 December1948, a dead body was discovered on Somerton beach, Glenelg, near Adelaide, South Australia. The man, was found to have a scrap of paper in his pocket from the book Rubaiyat of Omar Khayyam in his pocket.  Later on, the police found a suitcase believed to have belonged to the man but that led them to almost nowhere. The body described as one of ‘Australia’s most profound mysteries’ was never identified. It is believed that he may have been a spy since the incident occurred after WW2.


The Battle of Los Angeles

Credit: Los Angeles Times via ProQuest
Credit: Los Angeles Times via ProQuest

In 1942, a suspicious aircraft was seen hovering over Los Angeles just three months after the Japanese bombed Pearl Harbor,. Anti-aircraft guns and searchlights began engaging at the rumoured enemy object but nothing was spotted or shot down. The mysterious object just disappeared. The military has said that the object may have been a meteorological balloon but many believe that it may have been a UFO.


D B Cooper

Credit: FBI
Credit: FBI

A man hijacked a Boeing 727 in November 24, 1971, extorted $200,000 and parachuted off an aircraft somewhere between Portland, Oregon, and Seattle, Washington. Even after a through FBI investigation, the identity of the man remains a mystery. Nine years later a boy found some of the ransom money buried near a river but a through investigation of the area led nowhere. Some say the man may have worked for Boeing, some say it was plan by the airline crew to make money but the mystery


The Max Headroom Hack

A masked man managed to hijack two Chicago TV station in 1987. At 9:14 p.m. Nov. 22, the man interrupted a sports broadcast for 25 seconds. About two hours later, he interrupted a broadcast of a “Dr. Who” episode with another person for two minutes by making multiple references to WGN and Max Headroom ( a character from an 80s show). He revealed his buttocks to the camera where a woman spanked his bottom with a fly-swatter. His identity or the cause for his actions has never been found.


The Black Dahlia Murder

Credit: Santa Barbara police
Credit: Santa Barbara police

Elizabeth Short was found murdered on January 15, 1947 in Leimert Park, Los Angeles. Her corpse was cut into two, drained of blood and slashed numerous times by the killer.Around 60 persons ‘confessed’ to the murders, 25 of them were investigated as possible suspects. Till now, nobody has discovered the motive or the identity of the killer. The FBI vault has listed most of their investigations into this case as public record, so if you fancy a bit of sleuthing, you can head on over here for more details related to the crime.