We're checking in on a State Department announcement today for our Geo Quiz. The American Ambassador to Britain said today the U.S. plans to put its embassy in London up for sale.

U.S. embassy in Lonon, U.K.: flickr.com/photos/thekillerbiscuit/

Thomas Naftali is a historian. And he's a fan of this landmark building. Tell us first where it's located and where its being relocated?

Grosvenor Square, Westminster, City of Westminster, London TO: industrial land south of the river Thames in the Wandsworth area