ConspiracyTheory.net

Unsolved Mysteries

Some cases refuse to close. A plane vanishes over the Indian Ocean. A man washes up dead on an Australian beach with a coded message in his pocket. Hikers die under impossible circumstances in the Ural Mountains. These are the open cases that still haunt investigators, armchair detectives, and anyone who's ever stared at a ceiling at 3 AM wondering what really happened.

12 theories in this list

1
Malaysia Airlines MH370 Disappearance
Unresolved

Malaysia Airlines MH370 Disappearance

Explore the theories surrounding the 2014 disappearance of Malaysia Airlines Flight MH370 with 239 people aboard, from pilot suicide to Diego Garcia.

2014 · Malaysia
2
Unresolved

The Dyatlov Pass Incident

Nine hikers cut through their tent and fled into -30°C darkness. The Soviet investigation blamed 'a compelling natural force.' Sixty-five years later, we still don't have a definitive answer.

1959 · Soviet Union
3
The Somerton Man
Unresolved

The Somerton Man

A dead man on a beach. All labels cut from his clothes. A scrap of Persian poetry in his pocket. A code no one can crack. The Tamám Shud case has baffled investigators since 1948.

1948 · Australia
4
Unresolved

D.B. Cooper: The Unsolved Hijacking

The only unsolved skyjacking in US aviation history: in 1971, a man called D.B. Cooper hijacked a Boeing 727, collected $200,000 ransom, and parachuted into oblivion.

1971 · United States
5
The Zodiac Killer: America's Most Infamous Unsolved Case
Unresolved

The Zodiac Killer: America's Most Infamous Unsolved Case

The Zodiac Killer terrorized Northern California from 1968-1969, taunted police with cryptograms, and was never caught. A deep dive into the suspects, ciphers, and conspiracy theories.

1968-12-20 · United States
6
Jack the Ripper — The Identity Theories
Unresolved

Jack the Ripper — The Identity Theories

A comprehensive guide to the major suspects behind Jack the Ripper, from royal conspiracies to DNA evidence claims. The world's most famous unsolved murder case, examined.

1888-08-31 · United Kingdom
7
Debunked

The Death of Elisa Lam

A 21-year-old tourist found dead in a hotel water tank. Bizarre elevator footage. A hotel with a murderous history. The Elisa Lam case became one of the internet's most obsessive mysteries.

2013 · United States
8
Unresolved

The Hinterkaifeck Murders

In 1922, six people were murdered with a mattock on a Bavarian farm. The killer stayed for days afterward, feeding the livestock. A century later, the case remains unsolved.

1922 · Germany
9
Unresolved

The Lead Masks of Vintem Hill

Two men in suits and crude lead eye masks found dead on a Brazilian hilltop in 1966, with a note about swallowing capsules and waiting for a signal. The case has never been solved.

1966 · Brazil
10
Cicada 3301
Unresolved

Cicada 3301

In 2012, an anonymous group began posting cryptographic puzzles that spanned the globe. Over a decade later, Cicada 3301's identity and purpose remain unknown.

2012 · Unknown
11
Kryptos: The CIA's Unsolved Sculpture
Unresolved

Kryptos: The CIA's Unsolved Sculpture

A copper sculpture at CIA headquarters has contained an unsolved code since 1990. Three of its four sections have been cracked. The final 97 characters remain one of the world's greatest cryptographic mysteries.

1990 · United States
12
Number Stations
Confirmed

Number Stations

For decades, anonymous shortwave radio stations have broadcast streams of numbers into the void. Some have been confirmed as spy communications. Many remain completely unexplained.

1910s · Various