The first deck of playing cards was invented in China sometime during the 9th century. A lot has changed since that time. The number of cards, the suits, and the appearance of the cards to name just a few things. One thing that hasn't changed is the popularity of playing cards among the masses. More than 100 million decks of playing cards are created each year. Billions of card games are played every year. This post showcases some of the coolest decks of playing cards in existence.