The Physical Impossibility of Death in the Mind of Someone Living is an artwork created in 1991 by Damien Hirst, an English artist and a leading member of the “Young British Artists” (or YBA). It consists of a tiger shark preserved in formaldehyde in a vitrine. It was originally commissioned in 1991 by Charles Saatchi, who sold it in 2004, to Steven A. Cohen for an undisclosed amount, widely reported to have been $8 million dollars, however the title of Don Thompson’s book, The $12 Million Stuffed Shark: The Curious Economics of Contemporary Art, suggests a higher figure.
Due to deterioration of the original 14-foot (4.3 m) tiger shark, it was replaced with a new specimen in 2006. It was on loan to the Metropolitan Museum of Art in New York City from 2007-2010.
It is considered the iconic work of British art in the 1990s, and has become a symbol of Britart worldwide. (via Wiki)