Unbelievable Secrets About the Infamous Playboy Mansion Finally Revealed

Pool Party

There was a mystical place at the Playboy Mansion called "the Grotto." It was a manmade cave that was outfitted with a personal hot tub, waterfall, and champagne fridge for "private" gatherings. But, that secret space gained some interesting recognition from the Los Angeles Department of Health...

The More You Know

Nutella was invented during WWII, when an Italian pastry maker mixed hazelnuts into chocolate to extend his chocolate ration.
Bubble wrap was originally intended to be used as 3D wallpaper.
Parts of the Great Wall of China were made with sticky rice.
The first commercial airplane flight lasted 23 minutes.

Post originally appeared on Upbeat News.