The unknown, the unexplained, the uncanny.

It's an unforgettable countdown to the truth!

Evening Magazine goes in search of answers to the Northwest's 10 greatest unsolved mysteries.

Click on the videos and find out who's Craig and what killed Lewis.

See what happens when UFO's are sighted at various Northwest locations.

Check out some mysterious mounds and holes.

And, of course, don't forget Washington's biggest mystery: D.B. Cooper.

More information:

Museum of History and Industry: www.seattlehistory.org

Seattle Museum of the Mysteries: www.seattlechatclub.org

Washington State History Museum: www.wshs.org

Missing Monorail: www.monorails.org/tMspages/History.html

D.B. Cooper: www.crimelibrary.com/criminal_mind/scams/DB_Cooper/

Mel's Hole Ogopogo (Wikipedia entry): en.wikipedia.org/wiki/Ogopogo

Mima Mounds: www.wintersteel.com/Mima_Mounds.html