The Ancient city-ship currently located in the Pegasus Galaxy, Atlantis was recently discovered by the Tau'ri, who have taken residence in it.

Atlantis was a myth described by Plato as an advanced society that sank into the sea. Many comics use it as a source of technology, magic, or advanced beings, either in the ancient past or undersea.

Atom Valley is the top secret Government research facility where Gold Key’s “Doctor Solar”, a young research scientist named Dr. Raymond Solar, is inadvertently exposed to a live nuclear pile during an act of sabotage.

The island of Tom Strong's origin.

Attilan was formally the city of the Inhumans and was last located floating off the coast of Manhattan until it's destruction from the detonation of the terragenesis bomb.

City in New Zealand

City on the Savannah River boarder of South Carolina and Georgia.

The house where Aunt May lives.

The sister city of Atlantean Venturia, domain of Queen Eeras

Location of the Nazists concentration camps.

A fictional European country in the DC Universe. The capital city is Austan. The nation of Austanburg first appeared in the series Checkmate. It was later used in Peter Cannon: Thunderbolt. It is currently ruled by Victor Cypher.

The capital of the state of Texas.

The only continent occupied by a single country. It's also the sixth largest country by area and most remote of Earth's continents.

Central European country.

Automata is 144th planet in the Qruyx Benevolence.

Magneto's base on Mars.

The floating headquarters for the mutant group, the Acolytes, which has since been destroyed.

An entire floor of an apartment building Danny Rand gave to the Avengers to use as their base after the Masters of Evil destroyed Doctor Strange's Sanctum Sanctorum.

The Avengers Compound is a 15 acre estate located at 1800 Pales Verdes Drive on the Pacific coastline south of Los Angeles, California. It was the former headquarters of the West Coast Avengers and later the Avengers Academy

Former called Hydrobase, the floating fortress. A floating artificial island created by Stingray to function as an oceanography research facility. It later became the base of operations for the Avengers and was re-christened "Avengers Island".

A luxurious town house located on Fifth Avenue in Manhattan, New York, the Avengers Mansion is the home and main base of the Avengers.

Located in the North Pole, Avengers Mountain is the one-time global headquarters of Earth's Mightiest Heroes.

Owned by billionaire industrialist Tony Stark, AKA Iron Man, it was formally called Stark Tower but is now known as Avengers Tower. It is the current headquarters and main base of operations for "Earth's Mightiest Heroes".

A hidden burial ground located outside of Central City, it is a graveyard where the Flash's Rogues are laid to rest.

Home of the Birdmen of Eternia.

Ayers Rock, also known by the traditional name of Uluru, is a massive rock in the centre of Australia.

A small fictional Marvel nation on the Horn of Africa.

A prison camp where Deathblow was kept captive for six years. Its name is an obvious pun on its creator's name, Brian Azzarello.

A city-state in another dimension. Home of the Teen Titan known as Raven.

Azerbaijan is a country in the geographic borders between Europe and Asia. It borders Russia, Georgia, Armenia and Iran. It is also approximate to Turkey. The province of Daglik-Karabach is occupied by Armenia since 1991.

Azeroth is the planet where most Warcraft universe stories are set.

A territory of Portugal.