A museum in Madrid might have stumbled upon the earliest known copy of the Mona Lisa.
Assuming it was just another replica of the iconic picture by Leonardo da Vinci, officials at the Prado Museum in Madrid, Spain have discovered the copy in their very own collection.
According to The New York Daily News, the painting is said to have been painted alongside da Vinci by one of his apprentices at the same time the original painting was being created.