Based on the rules of the Sliding Timescale of Earth-616 all appearances of the original Twin Towers and all references to the terrorist attacks on September 11, 2001 as having taken place during the modern age of heroes should now be considered topical references. This is because the modern age has existed for fourteen years in Marvel Time. As of this writing, the "present" in the Earth-616 universe is 2016. This means that the modern age of heroes began in 2002. As such no appearance of the Twin Towers is considered factual references anymore.
As stated above, any specific dates mentioned to quantify time during the modern age should be considered topical as opposed to factual.
In Earth-616 the World Trade Center appears to have fallen to terrorists during an attack on the Financial District of Manhattan in New York City, before being rebuilt years later as One World Trade Center.
The World Trade Center has been the backdrop and a landmark of many adventures in New York City. For example, the Avengers fought Zodiac on top of the World Trade Center. The battle, and in particular the Vision's actions, severely damaged the outer facade. After the skirmish, the Assemblers worked diligently on repairs with the Mighty Thor holding the foundation in place.
Peter Parker, Mary Jane Watson, and Flash Thompson had dinner at least once at the World Trade Center. Spider-Man also would stick on the side of the World Trade Center whenever he was thinking or just resting.
- During 9/11, many villains were seen at the World Trade Center as well, such as Doctor Octopus, Kingpin, and Magneto, simply standing there. Dr. Doom was seen crying, a very rare occurrence.
- 165 Appearances of World Trade Center
- 9 Minor Appearances of World Trade Center
- 11 Media World Trade Center was Mentioned in
- 10 Images featuring World Trade Center
- Location Gallery: World Trade Center