Monopoly Board is not just for family fun - Hidden Maps in the Board Game Helped WWII Prisoners Escape

It's a story that will forever change the way you think of the phrase, "Get Out of Jail Free."

During World War II, as the number of British airmen held hostage behind enemy lines escalated, the country's secret service enlisted an unlikely partner in the ongoing war effort: The board game Monopoly.

It was the perfect accomplice.

Included in the items the German army allowed humanitarian groups to distribute in care packages to imprisoned soldiers, the game was too innocent to raise suspicion. But it was the ideal size for a top-secret escape kit that could help spring British POWs from German war camps.

The British secret service conspired with the U.K. manufacturer to stuff a compass, small metal tools, such as files, and, most importantly, a map, into cut-out compartments in the Monopoly board itself.

"It was ingenious," said Philip Orbanes, author of several books on Monopoly, including "The World's Most Famous Game and How it Got That Way." "The Monopoly box was big enough to not only hold the game but hide everything else they needed to get to POWs."

British historians say it was effective enough to help thousands of captured soldiers escape.

The amazing intrigue and secret history of this game can be read in full from ABC News at this link: http://www.abcnews.go.com/Technology/monopolys-hidden-maps-wwii-pows-escape/Story?id=8605905&page=1