Brow Beat

The New York Observer reported  last week that a 24-year-old Jewish woman had become "mayor" of Jerusalem's Temple Mount on Foursquare . (Foursquare is a mobile application that allows users to broadcast where they are at all times; the person with the most "check ins" at any given location becomes mayor of that spot. Slate 's Jessica Grose explains it all here .)

Ariela Ross planted her virtual flag on the Temple Mount — possibly "the most highly contested 324,000 square cubits on the faceof the earth" — despite the fact that Jewish law forbids Jews from walking on the site, "due to the possibility of treading on the remains of the ancient Temple." I suppose all's fair in love and meaningless Internet competitions. But it got me thinking: What other highly inappropriate sites have been claimed by click-happy Foursquare users? Below, a selective list of the most curious, newsworthy, and/or squirm-inducing mayorships we found:

Rikers Island:
http://foursquare.com/venue/1312669

San Quentin:
http://foursquare.com/venue/62631

The Grassy Knoll:
http://foursquare.com/venue/335146

Sing Sing:
http://foursquare.com/venue/4945822

Al-Masjid al-Haram (aka The Holy Mosque of Mecca):
http://foursquare.com/venue/3734792

Park51 (aka the "Ground Zero Mosque"):
http://foursquare.com/venue/6985403

Fresh Kills Landfill :
http://foursquare.com/venue/214218

Three Mile Island:
http://foursquare.com/venue/694589

The United States Holocaust Memorial Museum, DC:
http://foursquare.com/venue/123039

The Vatican:
http://foursquare.com/venue/1250941

The Branch Davidian compound in Waco, Texas:
http://foursquare.com/venue/6546426

Guantánamo Bay:
http://foursquare.com/venue/1916112

The Auschwitz Museum:
http://foursquare.com/venue/4581346

Dachau:
http://foursquare.com/venue/199446

Are you a mayor of one of these sites? We want to hear from you! Email us at nina.rastogi@slate.com . Found any other notorious Foursquare mayors? Nominate your favorites in the comments.