D.B. Cooper: In 1971, this skyjacker boarded a Northwest Airlines flight, extorted $200,000, and parachuted out somewhere over the rugged Oregon wilderness. Despite an extensive FBI investigation, his true identity and fate remain unknown.

Jack the Ripper: This gruesome serial killer terrorized London's Whitechapel district in 1888, brutally murdering at least five women. Despite numerous suspects and theories, his identity remains one of history's most enduring mysteries.

The Zodiac Killer: Operating in the late 1960s and early 1970s, this serial killer taunted police and the public with cryptic letters and ciphers. Despite claiming responsibility for five murders, his true identity and possible additional victims remain unsolved.

Howard Hughes: This billionaire aviator, industrialist, and film producer lived a life of flamboyant eccentricity and veiled secrecy. His involvement in political scandals, affairs with Hollywood stars, and reclusiveness in later years continue to fuel speculation and intrigue.

Robert Johnson: This Delta blues legend, known for his haunting vocals and mastery of the guitar, mysteriously died at the young age of 27. Rumors of poisoned whiskey deals with the devil, and even supernatural pacts, swirl around his life and untimely demise.

Nikola Tesla: This visionary inventor and futurist held over 1,000 patents, but many of his ideas and inventions remain shrouded in mystery. His work on wireless communication, free energy, and anti-gravity technologies continue to inspire and spark speculation about his true genius and potential hidden discoveries.

Victor Lustig: This con artist extraordinaire, nicknamed "The Count," is renowned for his audacious scams, including selling the Eiffel Tower twice and the Brooklyn Bridge once. His charming persona, master manipulation skills, and ability to disappear without a trace make him a fascinating enigma.

Ambrose Bierce: This prolific writer, journalist, and Civil War veteran was known for his macabre sense of humor and cynical outlook. His sudden disappearance from Mexico in 1914, with only a cryptic note suggesting he might have joined revolutionary forces, has never been fully explained.

The Greenbrier Ghost: This mysterious figure is said to haunt The Greenbrier, a luxurious resort in West Virginia. Reports of sightings, unexplained noises, and chilling encounters have persisted for decades, adding to the allure and unsolved mystery of this spectral resident.  

The Somerton Man: In 1948, an unidentified man was found dead on Somerton Beach in Adelaide, Australia. With a briefcase full of seemingly meaningless items and an indecipherable scrap of paper in his pocket, his identity and cause of death remain a perplexing enigma.