Gustav Klimt created some of the world’s most expensive masterpieces, but around 20% of his artworks have been lost.

Among them are the so-called Faculty Paintings: PhilosophyMedicine, and Jurisprudence.

The three pieces are believed to have been destroyed in a fire during World War Two. Only black and white photos of the artworks remain.

The original paintings may never be seen again, but machine learning has come close to bringing them back to life.

Using AI and the artistic expertise of Vienna’s Belvedere Museum, the Google Arts & Culture Lab developed an algorithm that applied Klimt’s colorization style to the photos.