They are attempting to have the museum removed from the game.

One viral image shows Koffing — a poisonous-gas-type Pokémon — in the museum.

The image was originally shared in an Imgur post that has since been deleted. While it could be a hoax, a museum representative did tell the Washington Post they are "aware of and concerned about the potential Koffing appearance."

WhyAmIOnHere87 / Via imgur.com

The Holocaust Museum isn't the only questionable game location: the 9/11 Memorial is a PokéStop too.

Twitter: @bigratsgoboom

Park rangers around the National Mall, on the other hand, have embraced the game as an opportunity to teach people about the monuments where they've come to play.

Still, they share concerns about people playing around more somber monuments, such as the World War II Memorial and the chamber at the Jefferson Memorial.

“We’re finding that there are thousands of people coming to the National Mall, to play this game, to collect Pokémon, and we know they’re going all over the place — which is great, they’re coming to the park and they’re experiencing that,” Paul Ollig, the chief of interpretation and education for the National Mall and Memorial Parks, told BuzzFeed News on Monday.

Chris Geidner / BuzzFeed

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