The Sanctum Sanctorum is the residence of Doctor Strange, the immensely powerful sorcerer within Marvel’s superhero universe. This place not only serves as a sanctuary filled with numerous magical artifacts but also conceals countless secrets that even the most devoted Marvel fans might be unaware of.
The Sanctum Sanctorum is built on a network of mystical energies.
In the comic book versions, the Sanctum Sanctorum is depicted as a location imbued with exceptionally powerful magic. The very structure of this house rests upon a web of magical energies, and one could imagine it as if it were perched atop… a mystical ley line. This characteristic has made Doctor Strange’s dwelling one of the most revered locations for those seeking to master the arcane arts.

In Doctor Strange’s second film, the history of this house was revealed; it is noted that after learning magic from the Ancient One, Doctor Strange returns to New York and inadvertently gets drawn into this building on Bleecker Street. The house is surrounded by locals who believe it to be haunted, and this very fact helps Doctor Strange acquire the residence quite easily. In the films, the Sanctum Sanctorum is interpreted differently as it is viewed as one of the three most sacred locations built by the sorcerers to safeguard Earth from supernatural forces.
It is far more expansive than it appears from the outside.

The exterior of the Sanctum Sanctorum gives the impression of being merely an ordinary brownstone, unremarkable and dilapidated. However, the powerful magic within allows the space to expand significantly beyond its physical dimensions. Moreover, it can alter itself and create unique magical mazes, transforming this place into Doctor Strange’s personal magical realm.
The Sanctum Sanctorum once served as the headquarters for a group of other superheroes.
At one point, the Sanctum Sanctorum was utilized as a headquarters for a team of superheroes, not just Doctor Strange alone. The Defenders are one such group that operated from this location, with several superheroes being led by the Sorcerer Supreme himself.

The Defenders include many superheroes such as the Hulk, Namor, and Silver Surfer, who have roles in protecting Earth from various supernatural threats. During the Civil War storyline, the New Avengers also gained permission from Doctor Strange to use the Sanctum Sanctorum as a hidden base.
The Sanctum Sanctorum has a rather dark past.
Considered a sacred site imbued with powerful magic, the Sanctum Sanctorum has certainly existed for a long time, even before the first European settlers set foot on American soil. And the historical development of this place is still shrouded in many mysterious details that we have yet to uncover.

The most notable mention of this site is in Doctor Strange: From The Marvel Vault #1, where it is revealed that this is a place where many practitioners of the dark arts have met their demise. Many have died here as a result of performing dark magic rituals.
The residence of Doctor Strange can indeed be found on Google Maps.
Google Maps remains a helpful tool for locating real-world locations, and it has become quite popular today. However, few people are aware that the Sanctum Sanctorum can actually be found on this map, as it is often perceived as a fictional location.

When you search for this location on the map, the Sanctum Sanctorum, along with its owner Doctor Strange, will appear prominently on Bleecker Street, indicating that this is indeed a real location.
The residence of Doctor Strange is located in what is now a Starbucks, which also houses a gateway to other dimensions.

The Sanctum Sanctorum, being the most powerful magical nexus on Earth, also contains numerous gateways to other dimensions. Interestingly, the exterior of the Sanctum Sanctorum is now seen as a Starbucks café, blending the ordinary with the extraordinary.