Chris Claremont, Paul Smith
Jim Starlin, Mike Friedrich
The Uncanny X-Men #169 - Catacombs
Iron Man #55 (February, 1973)
The Xavier Institute, Salem Center, Westchester County, New York State, (former) The Alley (beneath Manhattans surface), X-Factor Is sentient starship
C.I.T.T.; formerly Monster Isle and Titan