Anecdotal. The largest unsolved art robbery that ever was ( I think this is still true) was at the Isabella Stewart Gardner museum in Boston. Details here (Smi

Anecdotal. The largest unsolved art robbery that ever was ( I think this is still true) was at the Isabella Stewart Gardner museum in Boston. Details here (Smithsonian) https://www.smithsonianmag.com/smart-news/five-things-know-about-isabella-stewart-gardner-art-heist-180977448/ https://www.smithsonianmag.com/smart-news/five-things-know-a... Excerpt: From start to finish, the biggest art heist in modern history lasted just 81 minutes. At 1:24 a.m. on March 18, 1990, two men dressed as police officers walked into Boston’s Isabella Stewart Gardner Museum. They overpowered two unsuspecting night security guards, then duct-taped their victims to a pipe and a workbench in the museum basement. “Gentlemen, this is a robbery,” the criminals announced. The pair proceeded to remove 13 treasured artworks on display in the lavishly decorated gallery, smashing the protective glass of two Rembrandt paintings and cutting the canvases from their gilded frames. Just over an hour later, the thieves made off with a staggering collection of art that’s valued today at $500 million. End excerpt. FWIW, like many things, Isabella Steward Gardner is for sale on eBay. DDG says: Isabella Stewart Gardner - Isabella Stewart Gardner Sold Direct on eBay.