In the 1960s to 1970s, the serial killer haunted Northern California and killed 37 people.
In 1969, news publications received a cryptic letter filled with chilling codes. The Zodiac Killer was never caught.
This 2018 case will send shivers down your spine. 11 members of a Delhi family took their lives under eerie circumstances.
The probe continued for months with speculations of the family practising supernatural activities, but the true motive remains a mystery.
The flight carrying over 200 passengers and crew members disappeared without a trace in 2014.
It gave rise to numerous theories, including hijacking and even alien abduction.
The existence of Area 51 has been one of the most talked about topics for decades.
Some say the government conducts alien tests and studies UFO wreckage in this area,
The Egyptian queen and her lover Marc Antony killed themselves after losing the Battle of Alexandria.
Despite underwater explorations and excavations, the final resting place of Cleopatra is a mystery.