popular
trending
lists
login
Open problems
Bridge disasters of unknown cause
Date of birth unknown
Date of death unknown
Economic puzzles
Hypotheses
Inscriptions of disputed origin
Lost inventions
Lost objects
Lost places
Philosophical problems
Place of birth unknown
Place of death unknown
Scientific problems
U-boats sunk by unknown causes
Undeciphered historical codes and ciphers
Unexplained disappearances
Unexplained phenomena
Unidentified people
Unknown-strength tropical cyclones
Unsolved crimes
Unsolved deaths
Unsolved problems in linguistics
Unsolved problems in mathematics
Works of unknown authorship
Year of birth unknown
Year of death unknown
Year of establishment unknown
Year of introduction unknown
Latest Activity
Latest Events
Tyrese Haliburton and Jade Jones
Marriage - 21st Jul 2026
by Redhot79
Thea Booysen and Jim Donaldson
Marriage - 20th Jul 2026
by TrickyBaby
Sarah Dugdale and Richard Harmon
Engagement - 20th Jul 2026
by missepticeye
Jessie J and Chanan Colman
Breakup - 20th Jul 2026
by missepticeye
see more
Follow WDW on Facebook
