Like many other landmarks, the museums are featured in the "Pokemon Go" game as Pokestops—places where players can get free in-game items, as well as stumble upon Pokemon while wandering their grounds.
In the US, museum officials are trying to have it removed from the game, Communications Director Andrew Hollinger said in a statement. He said playing the game inside a memorial to victims of Nazism is "extremely inappropriate."
The Auschwitz-Birkenau State Museum in Poland said it does not allow people to play "Pokemon Go" on their smartphones during visits to the former German death camp because it is "disrespectful on many levels."
"Pokemon Go" is a hugely popular new reality game that uses GPS and allows players to search locations in the real world to find virtual little creatures.
The Auschwitz memorial wrote Tuesday on Twitter: "Do not allow playing #PokemonGO on the site of our Memorial and similar places. It's disrespectful on many levels."
Additional controversial Pokestops are Arlington National Cemetary in Washington, DC, and the 9/11 Memorial in New York City.