It was stolen from the Louvre and missing for two years before being recovered in Italy. Learn more
Leonardo da Vinci painted The Battle of Anghiari in Florence, but it disappeared. Some researchers believe it may still be hidden behind a later wall mural. Learn More
Despite modern AI and cryptography attempts, its language has never been conclusively decoded. Learn More
Stolen in 1990 from the Isabella Stewart Gardner Museum, it remains unrecovered, one of history’s biggest art thefts. Learn More
Although theories exist, his real identity has never been officially proven. Learn More
Created by removing surface stones, they are visible from hills, not only airplanes, but their exact purpose is still debated. Learn More
Two different versions were stolen in separate incidents (1994 and 2004). Both were later recovered. Learn More
The Amber Room panels vanished during World War II and have never been found, despite decades of searching. Learn More
Leonardo experimented with a new painting technique, which caused the mural to deteriorate rapidly. Learn More
Historical records confirm he cut part of his ear in 1888, but whether it was the entire ear or only a portion remains debated. Learn More
Tests suggest the cloth dates to the medieval period, yet debate continues among scholars. Learn More
Out of approximately 50 Imperial eggs made for Russian royalty, a few are still unaccounted for. Learn More
There is no confirmed historical record identifying the subject. Learn More
Scholars have found anatomical accuracy in his works that suggests deep knowledge of human dissection. Learn More
For years, it remained outside Spain until democracy was restored, as per Picasso’s request. Learn More