between elevators 2, 3, and 4 on all floors. The building's steel-alloy framework is rigid enough to be stood on one corner and not collapse (It was suggested that the Baxter Building did not collapse under its own weight due to the use of tactile telekinesis by Gladiator of the Shi'ar Imperial Guard. Reed himself stated that even with the reinforced structure, it should not be possible otherwise.). The buffer-zone is the interface between the top five floors and the lower levels. It provides a rapid-disconnect between upper and lower segments of building. It contains an array of large oil-rams to dampen any oscillations between the five upper levels and the base of the building. The buffer-zone contains some support equipment for the upper levels, but mostly it is the "mechanical floor", which provides heating, ventilation, air-conditioning and elevator support equipment for the lower 30 stories. Ownership A running joke for years in the title was that the landlord Walter Collins was initially eager to rent out to a superhero team for the publicity and prestige, but he soon regretted his decision as the building became a constant target for numerous attacks by supervillains starting with Fantastic Four #6 in which Doctor Doom launched the entire building into outer space. The attacks made things difficult not only for the Four, but for the other tenants in the lower floors as well. Eventually, Reed Richards decided to invoke a clause of the rental agreement and bought the entire building to avoid eviction. Iterations Eventually, the building was destroyed by Doctor Doom's adopted son Kristoff Vernard, who shot it into space and exploded it in a bid to murder the Fantastic Four. It was replaced by Four Freedoms Plaza, built upon the same site. After the Fantastic Four and other costumed heroes were presumed dead in the wake of their battle with Onslaught, Four Freedoms Plaza was stripped clean of all the FF's equipment by Vernard and Reed Richards' father Nathaniel, who sent it into the Negative Zone to keep it out of the hands of the United States military. Upon their return, the Fantastic Four could not move back into Four Freedoms Plaza, as it had been destroyed by the Thunderbolts, shortly after the revelation that they were actually the Avengers' longtime foes, the Masters of Evil. Thus, the Fantastic Four moved into a retrofitted warehouse along the Hudson River which