7 Mysteries That Remain Unsolved 

Kryptos Sculpture

Kryptos is a sculpture located on the grounds of CIA Headquarters. Installed in 1990, its 1,800 characters contain encrypted messages, of which three have been solved. There is still a fourth section at the bottom consisting of 97 or 98 characters which remains uncracked

Beale Ciphers

The Beale Ciphers are a set of 3 ciphertexts that supposedly reveal the location of one of the grandest buried treasures in history: thousands of pounds of gold and jewels worth roughly $43mn. Of the three ciphertexts, only the second one has been cracked. 

Bermuda Triangle

It’s a mysterious area where over the past 500 years, airplanes and ships have gone missing. This area is bounded by the British Overseas Territory of Bermuda and US. Several theories have been floated by experts, ranging from UFOs to sea monsters, yet nobody has been able to decode the mystery.

Loch Ness Monster

Legends say that there exists a mythical creature in Scotland. Many call it the Loch Ness monster. The first photographic evidence of the monster was believed to be found in 1934. In 2008, there were reports that the creature might have become extinct 

Shroud of Turin

It’s a piece of linen cloth that bears the image of a man, believed to be Jesus of Nazareth’s burial shroud. As per the records, it has been kept in the Cathedral of Saint John the Baptist in Turin, Italy.  

The Lost City of Atlantis

The  Atlantis city is an island nation mentioned in the works of ancient Greek philosopher Plato. As per his account , the futuristic civilisation fell thousands of years ago, swallowed by sea. It was situated somewhere near the Strait of Gibraltar.

The Zodiac Murderer

A serial killer known as the Zodiac terrorised northern California in the late 1960s and early 1970s, taunting authorities and leaving behind cryptic messages. The killer's name is still a mystery despite extensive investigations and several suspects.