An attic in Toulouse, France, was filled with toys, clocks, and clothing — all collecting dust for years. But in 2014, its owners found something amongst the junk that was worth millions: an original painting from Renaissance artist Caravaggio.

The painting depicts the biblical tale of a woman named Judith who beheads Holofernes in the Old Testament. Caravaggio allegedly painted two versions of the same image. This version had been lost for decades until it turned up in the attic.

Although some think the painting isn't real, it's estimated to be worth between $114 million and $171 million.