An Important Location

Avengers Tower, formerly known as Stark Tower, was a high-rise building complex located in Manhattan, New York City. Constructed by Tony Stark, the tower was powered by an Arc Reactor that makes it capable of running itself for over a year. The top ten floors were originally all devoted to research and development.
Following the dissolution of S.H.I.E.L.D., Stark made the tower the main headquarters of the Avengers. However, after the Ultron Offensive, Stark refurbished an old Stark Industries warehouse upstate into the Avengers Compound for the Avengers to use as their primary base while Avengers Tower was repurposed for Stark Industries' use. In the aftermath of the Avengers Civil War, Stark sold the tower and had the valuable items and artifacts from the tower loaded onto a cargo plane for transport to the Avengers Compound.
By 2024, the tower, under its new ownership, had gone through extensive construction and renovation.