Rock's Rarest Artifacts

Kurt Cobain's Cardigans
Value: $40 million
Current Owner: Courtney Love; currently on auction at Christie's

"I'm going to have an auction," said Courtney Love, describing her house was like a mausoleum after hubby Kurt Cobain killed himself. "My daughter doesn't need to inherit a giant bag full of flannel shirts," she said. After gifting her daughter a sweater, a guitar and the lyrics to "Smells Like Teen Spirit," Love put the rest of Cobain's cardigans and keepsakes on the auction block for an estimated $40 million. In a previous auction, Cobain's Mark lV-style Mosrite Gospel guitar was auctioned in 1994 for $75,000, with the original case bears the words "NIRVANA" and "Fuck Elvis!" in white paint.