Smithsonian National Museum Of Natural History Debuts New Fossil Hall Featuring T. Rex Skeleton

WASHINGTON, DC - JUNE 04: An authentic Tyrannosaurus rex skeleton is displayed during a press preview of the Smithsonian's National Museum of Natural History’s newly reopened “David H. Koch Hall of Fossils – Deep Time” exhibit June 4, 2019 in Washington, DC. More than 700 fossil specimens, including mammals, reptiles, plants and insects are on display in the hall, made possible by a $35 million gift from billionaire David Koch. (Photo by Win McNamee/Getty Images)