Base
A penthouse in New York City; formerly Fisk Tower in New York City, a mansion in Westchester County, Las Vegas.
(current) X-Factor Investigations, New York City (former)Professor Xaviers School of Gifted Youngsters, Salem Center, Westchester County, New York; Muir Island, Scotland; X-Factor headquarters, Embassy Row, Washington, D.C.; X-Factor Headquarters, New Yo