The Voynich Manuscript, an ancient book filled with undecipherable text and mysterious illustrations, has puzzled researchers for centuries.
The identity of Jack the Ripper, a notorious serial killer in Victorian London, continues to elude investigators despite numerous theories and suspects.
The disappearance of the Roanoke Colony in 1590, where all 118 settlers vanished without a trace, remains a haunting enigma in American history.
The Nazca Lines, massive geoglyphs etched into the Peruvian desert centuries ago, raise questions about their purpose and the civilization that created them.
The Lost City of Atlantis, a mythical island civilization mentioned by Plato, sparks debate among scholars about its existence and possible location.
The Zodiac Killer, a serial murderer who taunted police with cryptic messages in the 1960s and 70s, remains unidentified, leaving a chilling mystery unsolved.