I think you know all that 20 famous mysteries, but do you know exactly where they are ?

treasure of Rennes le Chateau
Nessie
Sea Serpent
Yeti
Bigfoot
Bermuda triangle
The Man in the Iron Mask
Who was Kaspar Hauser ?
The Devil's Footprints
Who has killed JFK?
Philadelphia Experiment
Mary Celeste
the Moai of Easter Island
Shroud of Turin
Great pyramid of Giza
Stonehenge
Atlantis
Nazca lines
Tunguska explosion
Roswell event