Damien Hirst's For the Love of God, which the artist claimed to have sold for $100 million to a group of investors in 2007. He recently admitted that the piece was never sold.

Turns Out the Diamond Skull That Damien Hirst and White Cube Said They Sold for $100 Million in 2007 Still Belongs to Them

The work appears to have been inside a storage facility in London for 15 years.

Artnet News