In Comics
The Spectacular Spider-Man #64 - Cloak and Dagger!
Marvel Graphic Novel #4 - The New Mutants: Renewal
Base
Holy Ghost Church, 42nd Street, New York City
(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