Muir Island

The comic book stories published by Marvel Comics since the 1940s have featured several noteworthy concepts besides its fictional characters, such as unique places and artifacts. The following lists detail many of them.

Certain places feature prominently in the Marvel Universe, some real-life, others fictional and unique to the setting; fictional places may appear in conjunction with, or even within, real- world locales. A majority of dystopian cities have been used for their characters since the creation of Marvel Comics in the Marvel Universe.

Most of the action of Marvel Comics takes place in New York City.

New York is the site of many places important to superheroes:

New York is a center of industry, serving as the headquarters for a few Marvel companies:

Two universities are also especially prominent in the Marvel Universe:

Some items have been created specifically for the Marvel Universe and carry immense powers:

...
Wikipedia