Before the launch of the Arrowverse most of DC's superheroes didn't largely rely on their own, solo headquarters outside of Batman's Batcave and Superman's Fortress of Solitude. While things like Green Arrow's Arrowcave had been introduced in comics, most of these tropes with the lesser known heroes were relatively neglected or abandoned altogether.
However, the advent of DC TV on the CW has brought these solo headquarters back in a big way for each of the network's superhero series. Now, we're taking a closer look at the Arrowverse's inaugural four television series and how each offered its own spin on the idea of its respective heroes having their own headquarters.
Arrow
After Oliver Queen returned to Starling City to defend it as the Arrow, he initially created a makeshift base of operations -- which he dubbed the Foundry -- under his nightclub Verdant after initially setting up shop in an abandoned Queen Consolidated factory. Following a tip from Ra's al Ghul, the police raided the Foundry, with Team Arrow setting a new lair under Palmer Technologies. After this base was infiltrated, the team established a base under Oliver's mayoral campaign headquarters which they called the Bunker.
The various bases contained training equipment for Oliver and the team, as well as a full arsenal of weaponry, gear, uniforms, and vehicles for the team to resupply from between missions. Felicity uses the technological array within the facility as part of her surveillance and counter-intelligence operations, with the tech provided by Cisco Ramon and S.T.A.R. Labs.
The Flash
The destruction of a particle accelerator in the heart of Central City gave Barry Allen his powers and created dozens of other metahumans across the city. As Barry became the Flash, he set up his headquarters in S.T.A.R. Labs where the accelerator had been housed, supporting by the facility's staff who could monitor his health and support him in his superhero career.
In addition to being a science facility, S.T.A.R. Labs includes an entire medical bay where characters can recover from all manners of physical ailments, makeshift metahuman holding cells made from containers intended to transport hazardous materials and a circular track allowing Barry to gather enough speed to travel through space and time.
Supergirl
As Kara Danvers took on the mantle of Supergirl, she learned her adopted sister Alex was actually working for the Department of Extranormal Operations (DEO), a clandestine government organization tasked with monitoring and regulating superhuman and extraterrestrial activity on Earth. After earning the public's trust, Kara began using the DEO headquarters in a mountain range outside of National City only with J'onn J'onnz, who initially posed as Hank Henshaw.
The top-secret government facility is fully staffed with troops, analysts, scientists and medics as it continues its operations. In addition to its mission control room, the facility has a medical bay, holding cells, armory and research labs to assist the organization with its ongoing directive, including a direct comm link to the President of the United States.
Legends of Tomorrow
Tasked with protecting the space-time continuum of the Arrowverse, the heroes of Legends of Tomorrow navigate space and time aboard Rip Hunter's spaceship the Waverider. While captaincy of the ship would eventually shift to Sara Lance and the team began working with the Time Bureau, an organization tasked with maintaining the fabric of space-time, the team's mobile base of operations has remained the same for the DCTV series to date.
The Waverider is equipped with an intuitive artificial intelligence named Gideon, a cargo hold, holding cell, study filled with historical research and living quarters for each of the team. In the event of entering combat, the Waverider has also been fitted with shields and weaponry to defend itself from all manner of threats as ventures into deep space, the time stream, and various hostile environments across history.