For your information

The hugely popular board game, Monopoly, was introduced in 1934 by Parker Brothers, a division of Hasbro, and has become one of the most played games in the world. Almost everyone is familiar with the little guy with a white mustache, top hat, tails, and cane – Rich Uncle Pennybags.

There are loads of versions now including Star Wars, Star Trek, Pokemon, Minions, Mario Brothers and many more. The British version has streets from London, the US version uses those from Atlantic City, the French version from Paris, and so on.

During WWII, a special British Monopoly game may have saved hundreds of lives – it could have been entitled “Monopoly, The Escape Version.”

WWII Monopoly Game: The Escape Version.
As I remember, they hid escape map inside the game.