In Comics
Journey into Mystery #85 (October, 1962)
Marvel Graphic Novel #4 - The New Mutants: Renewal
Base
Not Available
(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