Avengers Tower
When the camera is soaring across the New York skyline, many viewers grow more and more excited to see the titular Stephen Strange appear in the very next shot, which he evidently does. Amidst all the buildings on screen, there was one that stood out above the rest.
A massive letter “A” can be seen proudly displayed at the side of a building, which is naturally the Avengers Tower that symbolizes the iconic group of Earth’s protectors, as well as housing the one and only Tony Stark, AKA Iron Man. There are multiple nods towards The Avengers, with Wong calling them out by name and the building making its second appearance during a massive action sequence.
Seeing how small of a detail this is, it’s easy to miss. However, Marvel likes to make sure viewers are aware that Doctor Strange is tied to the rest of the MCU.