While we see new teams form up in comics all the time, it never really feels official until said team has an actual headquarters to call home. Without a base of operations, any hopeful team is just a gathering or an occasional partnership.

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The Avengers not only appeared in what would become their headquarters in their second issue, but they also have worked out of quite a few different bases over the years, each with their own respective advantages. Today we are going to explore a few of the best Avengers headquarters to see which base comes out on top!

10 BAXTER BUILDING

While the Baxter Building is more commonly associated with the Fantastic Four, the building also served temporarily as the New York HQ for Parker Industries, which was Peter Parker/Spider-Man's incredibly successful company for about two minutes.

Spider-Man effectively bought his way onto Sam Wilson/Captain America's Avengers with the top five floors of the Baxter Building, which included living quarters, communications, an arsenal, a brand new Quinjet, and a 360-degree view of New York City.

9 SANCTUM SANCTORUM

Sanctum Sanctorum

Doctor Strange is the Sorcerer Supreme of the Marvel Universe, and he operates out of his own base known as the Sanctum Sanctorum, a mansion in New York's Greenwich Villiage that is a focal point of mystical energy that has many different enchantments and spells cast for various levels of protection.

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The New Avengers operated out of the Sanctum after the Civil War split the team and continued to use it as a headquarters during Norman Osborn's Dark Reign era. During this time, the building was disguised as an abandoned building with promises of a new Starbucks to hide from the authorities and other Avengers teams.

8 AVENGERS COMPOUND

While most of the Avengers teams were usually based in New York, for a time Hawkeye ran his own squad of West Coast Avengers in Los Angeles out of Avengers Compound. This building featured ground-level floors that housed the team and staff, while multiple sub-basements and hangars housed the high-tech equipment and labs.

While the West Coast Avengers would eventually disband, the Compound was repurposed and used as the site for Avengers Academy, a training program for young heroes ran by an assortment of Avengers under the watch of founding member Hank Pym/Giant-Man.

7 INFINITE AVENGERS MANSION

While Avengers Academy expanded into the Avengers Compound, the students were initially housed within Hank Pym's Infinite Avengers Mansion, a TARDIS-like mansion full of millions of floors and rooms that exist in a dimension known as Underspace, which is below the Microverse or Quantum Realm for the MCU fans.

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Infinite Avengers Mansion is able to connect to the mainstream dimension and its various rooms through doorway portals and also served as the headquarters for Pym's Mighty Avengers team. While the Infinite Avengers Mansion was both unique and powerful, it was unfortunately destroyed during the Fear Itself event.

6 STARK TOWER

Likely the most well-known headquarters for Earth's Mightiest Heroes is Avengers Tower, as we've seen this base on the big screen in the Marvel Cinematic Universe. The comic version began in much the same way as Stark Tower before the top few floors were offered to the New Avengers and it became unofficially known as Avengers Tower.

When Sentry joined the team, his Watchtower revealed itself on top of Stark Tower and remained there even after Norman Osborn took over the building as the headquarters for his Dark Avengers. Avengers Tower was destroyed and rebuilt a few times over a short period, and it was eventually sold to a foreign company.

5 TRISKELION

The Triskelion is a huge base generally located in the New York City bay and has appeared in a few different forms across a few alternate realities, and even served as a S.H.I.E.L.D. base in the MCU. The first appearance of the high-tech headquarters was in the Ultimate universe where it served as the S.H.I.E.L.D.-run base of the Ultimates, updated versions of the Avengers.

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The Triskelion would later appear in the mainstream Marvel universe and serve as the headquarters for three related organizations; the Wakanda Embassy, Alpha Flight's earth-based operations, and a base for the mainstream universe's version of The Ultimates that featured Captain Marvel, Black Panther, Blue Marvel, America Chavez, and Spectrum.

4 AVENGER BASE TWO

When former New Mutant/X-Force member Roberto "Bobby" da Costa/Sunspot was invited to join the Avengers, no one could have expected the mark he would leave on the team. Following his brilliant purchase of the terrorist organization known as A.I.M., Sunspot reorganized the group and created a new team known as Avenger.Idea.Mechanics.

That team initially operated out of the former villainous lair that would become Hydrobase and later Avengers Island, though when it was destroyed Sunspot revealed the real headquarters known as Avenger Base Two, which was a huge camouflaged dome located in the Savage Land that was full of the best goodies and tech money could buy.

3 LIGHTHOUSE

When Commander Rogers (the former Captain America) took over as the Director of S.H.I.E.L.D., he created a covert team of Secret Avengers who initially operated out of a flying base known as the Quincarrier that was even capable of space travel, but when the team expanded a new orbiting satellite headquarters was created by Hank McCoy/Beast and Hank Pym.

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The Lighthouse featured many of the same high-tech gear as other Avengers bases, but it was built for stealth above all else, which meant that the Lighthouse itself was actually shrunk down in space and used a Pymporter to shrink/transport members on and off the Lighthouse. The space station was later destroyed by the Descendents and burned up in the atmosphere.

2 AVENGERS MOUNTAIN

Avengers Mountain is the most recent base the team has used, and it's also the strangest headquarters the Avengers have ever lived inside. Located in the North Pole, Avengers Mountain is actually the dead corpse of a Celestial known as the Progenitor that had died on Earth billions of years ago, potentially seeding the planet with the evolutionary potential to create an age of heroes.

As the current chairman of the Avengers, Black Panther used the vast resources of Wakanda to refurbish the corpse into Avengers Mountain, which houses living and training areas, labs, hangars, a prison, one of the most sophisticated computer systems on the planet and a global teleportation system powered by the Celestial's blood.

1 AVENGERS MANSION

While Avengers Mountain may be the most advanced base the team has ever operated, our favorite will always be Avengers Mansion, which was located in the heart of New York City. Like Avengers Tower before it, Avengers Mansion was originally a Stark residence, though it had been rebuilt and updated many times over the years to better serve the Avengers.

After the Avengers' first official meeting in Tony Stark's private library in The Avengers #2, Avengers Mansion would grow to include multiple underground levels and be rebuilt in many different forms, housing Avengers, New Avengers, and Young Avengers alike. While it may not be able to measure up to other more modern bases, we'll still always love Avengers Mansion.

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