Have you torn up the carpet in your house since you moved in? You REALLY never know what you might find under there . . .
Someone posted a photo on earlier this week that showed how their in-laws ripped up their carpet . . . and found a huge MONOPOLY BOARD painted on the floor.
The best theory in the comments is that it was part of a short trend in the 1950s where some people painted or tiled game boards into their floor.