Natural History Museum (IDW)

In the IDW continuity, the Natural History Museum is located in New York City. It appears both at the beginning and at the end of the mini-series TMNT: Bebop & Rocksteady Destroy Everything!, where the visit an exhibit called "The Mysteries of the Ancient Sorceress," whose centerpieces are the mummified body of  of  and the complete skeletons of  and, all dated to the Cretaceous period of 's remote prehistory.

In issue #1, touches a gem on the mummy's body, and an automated reaction summons the younger Renet to their location, and she reveals that the gem is actually a Stasis Cube that was meant to teleport her to that time and place when the Turtles touched it. Renet is equally confused about why the exhibit also has skeletons of Bebop and Rocksteady, but Renet is also aware that the fossils are from the same time period that was banished to (in the Mirage continuity), so she and the Turtles travel back to the Cretaceous to investigate, kicking off the miniseries' events.

In issue #5, it has been established that and  from the IDW continuity did indeed time travel back to the Cretaceous and teamed up with Savanti Romero, but that it was not their bones that fossilized over millions of years and made their way to the exhibit, but those of their 1987 TV series versions. And the mummy of future Renet in the exhibit was not dead, but just preserved in stasis; when younger Renet removed the gem from the mummy, the future Renet came back to life. However, with her revival, the exhibit had lost its centerpiece.

Trivia

 * Though apparently a fictionalization of the American Museum of Natural History, this version of the museum is never referred to by that name, and even the museum exhibit's hanging poster uses branding that refers to the "Natural History Museum" rather than the "American Museum of Natural History."