The final frontier, the sea of space, the vast gulf between stars... whatever you want to call it, if it's not on Earth, or in a generic star system, it's here.

In the DC Universe, the Watchtower is the headquarters of the Justice League of America.

The newest "front" for the Justice League of America, the Hall of Justice serves as an embassy and museum to the world at large, but contains secret teleporters to the new JLA satellite.

HQ for the Injustice League Unlimited

Metropolis is much more than a bustling urban center. Like many east coast American cities, Metropolis is a melting pot of peoples and cultures. It is sometimes called the City of Tomorrow.

The home of Hal Jordan, the City without Fear.

Gotham City is under the protection of Batman and his protegees from the criminally insane supervillains, gangs, and mobs that litter it's streets.

The home of Bruce Wayne, Tim Drake and Alfred Pennyworth. In the cave system below Wayne Manor lies the Batcave. Wayne Manor was destroyed during the events of Cataclysm but was later rebuilt.

The Batcave is the headquarters for Batman. True to its name, it is a cave underneath his mansion.

Owned by Bruce Wayne, Wayne enterprises is the force behind Gotham city. Because of the Wayne family's dedication to justice, Wayne enterprises deals with the utmost integrity.

Arkham Asylum for the Criminally Insane is a fictional prison that is located in Gotham City. It is the place where most of Batman's enemies are imprisoned for treatment.

The Fortress is Superman's headquarters created by the Eradicator. It contains various Kryptonian artifacts as well as a way of communicating with Jor-El.

Where the Zataras live. Currently Zatanna Zatara lives there.

The Shadowcrest mansion is the Zatara family home. To Zatanna, it is her personal batcave a place to store her magical equipment and provide a place to practice her magical arts. There are books that are centuries old written in languages that are not human as well as artefacts with the power to do just about anything.

While the building appears to be large on the outside, Mary Marvel notes that it is even larger on the inside.

Asteroid M was Magneto's lair in orbit over the Earth. Destroyed, rebuilt & replaced various times; Asteroid M was destroyed in the sun & eventually fell to Earth after a conflict with the X-Men.

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

The Savage Land is a tropical prehistoric land hidden in Antartica. It was created during the triassic by the alien Nuwali for another alien race, The Beyonders, for observation and research purposes.

The Helicarrier is the mobile veichle used by SHIELD as they're base.There are at least 8 known .

Madripoor lies between Singapore, in the south of Thialand, and the island of Sumatra. Wolverine makes his second home in the Principality of Madripoor.

Muir Island is and Island off the coast of Scotland which housed one of the most prominent mutant research facilities in the world.

1st Appearance:IRON MAN #217 Most Recent Appearance: Iron Man And Iron Man 2 Moves

Stark Industries is owned and run by billionaire Tony Stark.

Stark Industries is a multinational company with facilities in over thirty different countries all over the world. Stark Industries was founded by Howard Stark and taken over by his son Tony Stark, better known as Iron Man, after his death.

Located at 890 Fifth Avenue in Manhattan, New-York, the Avengers Mansion used to be the home base of the Marvel super-team the Avengers. When the Scarlet Witch went insane the mansion was destroyed.

Owned by billionaire Tony Stark, it was formally called Stark Tower, but is now known as Avengers Tower, and is the current headquarters of the Avengers.

The bottle city of Kandor is home to thousands of beings believed to have been abducted by the alien wizard Tolos and imprisoned between dimensional planes.

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.

The place where all evil people go after they die. Filled with lakes of fire, brimstone, heavy metal music, long lines, and people who drive too slow in the fast lane. Not a fun place.

After having overthrown his father, Kronos, Zeus divided the universe, their father’s kingdom, in parts he shared between himself and his brothers. Neptune gained the sea, Pluto the underworld and Zeus the heavens. He founded his proper kingdom, on the top of the Mount Olympus, were he lived with his sisters, brothers and children. The most famous and important Olympian Gods inhabiting Olympus are twelve, but other minor deities and gods were also welcome to live there.

Genosha is an island nation off the coast of Africa in the Marvel Universe. Once known for the enslavement of mutants, Genosha was ruled by Magneto before being destroyed by Cassandra Nova.

At the center of the Universe; between light and dark stands Castle Grayskull. For ages the Sorceress has kept harmony. For those who control Grayskull have the Power to be Masters of the Universe.

The super secret genetic lab that is located on the outskirts of Metropolis.

The Scientific and Technological Advanced Research Laboratories. Privately run research facilities.

The business arm of Lex Luthor, Lexcorp claims to be dedicated to the embetterment of mankind, while tends to act contrary to that goal.

Metropolis' premiere newspaper. Run by Editor-in-Chief, Perry White. Also features star reporter Lois Lane.

A building that is 46 stories high located in New York City, on 39th Street and Second Avenue that publishes The Daily Bugle newspapers from the three floors. It is owned by by J. Jonah Jameson.

The 5 top floors are the home of the Fantastic Four. It's a 35-story building located at 42nd Street and Madison Avenue in New York City. It had been built in 1949 by the Leland Baxter Paper Company.

Located at 1407 Graymalkin Lane in Salem Center, New York, the Xavier Mansion has been home to the X-Men since their inception, and has always been a school and safe haven for any mutants in need.

Hal Jordan's home and base of operations during his year long exile from Earth. Jordan's asteroid was located on the border of Space Sectors 2813 and 2814.

Now residing in Earth's orbit, directly opposite it, New Krypton is home to the residents of Kandor rescued from Brainiac by Kal-El.

In the Star Wars Universe the Death Star is a space station that is roughly the size of a small planet. It was built by the Empire and is capable of generating enough power to destroy entire planets.

Earth is the third planet from the Sun and is the only planet that contains organic life forms. It is sometimes referred to as The World, The Blue Planet or its Latin name Terra.

I would really like to visit there because, honestly, some days I think I live on another planet!

Thanagar, located in orbit around the star Polaris, is the original home of the Thanagarian race, Hawkman, Hawkgirl and the Nth metal.

Apokolips is a hellish planet ruled by Darkseid

The paradise-like planet, home to the good Gods of the Fourth world

Oa is one of the oldest planet in the DC comics universe. It is home to the Guardians of the Universe and Headquarters to Green Lantern Corps. It is the center of the universe according to the Guardians.

Wonderland

The Magical otherworld where Peter Pan and his friends reside.

The Marvelous Land of Oz was a magical realm where Dorothy landed after her farm house was swept up by a tornado. Disconnected from Earth, it was filled with talking Animals, witches and other amazing inhabitants.

This is Galactus's spaceship and home.

A place that exists outside of time and space. Created around 5,000 years ago from two rocks. One from Heaven, the other from Hell. Home of the wizard Shazam, The Rock of Eternity was recently destroyed by the Spectre, but has since been reconstituted.

Jor-El (Superman's Kryptonian father) discovered this dimension absent of time and space. He believed the dimension to be an ideal prison and alternative to death for the criminals of Krypton.

Blüdhaven is the sister city of Gotham City, located south down the river. Almost always run by organized crime, it attracted the attention of the vigilante Nightwing. During the Infinite Crisis it was destroyed by Chemo,and during Final Crisis it was the location of Darkseid's new Evil Factory.

The hometown of Superboy. It is also the hometown of Clark Kent, and his sweetheart Lana Lang. Lex Luthor used to live in Smallville, but after a great fire he denied ever being there and ever knowing Clark Kent.

At the edge of the known universe lies the Source Wall also known as the Wall of Souls. Beyond which is the Source, the answer to everything. Trapped on the Source Wall are those that have failed to reach the Source.

Oswald Cobblepot's Infamous Restaurant/Bar, mainly for Batman's Rogues and Other Gotham Criminals.

Home to the Amazons, a race of warrior women created by the Olympian gods. Wonder Woman is the most well known citizen of Themyscira.

The fourth planet from the Sun and Earth's neighbor. It has two moons, Phobos and Deimos.

Mars is the home to the Martian race, often depicted differently in various fictional universes. Civilizations on Mars are often depicted as either dead or dying, much like the planet itself.

Krypton is an alien planet in the DC universe. Most of its inhabitants died when it exploded. The most famous survivor is Superman.