It took Bryan Berg 44 days and more than 4,000 decks of playing cards to make this massive 10 metre-high model.
His building is a replica of the Venetian Macao hotel in China and amazingly he didn't use any tape or glue to keep it up.
Bryan's a trained architect but says he got his card-stacking skills from his grandfather.
The whole construction weighs 272 kilograms - that's about the same as an adult tiger.
He's broken his own Guinness World Record for the largest house of free-standing playing cards.