With Comic-Con a mere two days away (and preview night tomorrow), San Diego has already begun to take form with promotions throughout the city. Check out the beginnings of the Comic-Con takeover with these pictures.

Conan O' Brien's The Flaming C has clearly made its presence known. (Photo by Twitter user Crazy4ComicCon.)

Twilight fans have already gotten themselves in line for Hall H. (Via Blastr).

Immortals continues to be subtle with its presence on the Marriott Marquis & Marina Hotel. (Unfinished Immortals poster photograph by Flickr user popculturegeek.com and finished Immortals poster picture by Flickr photographer mchulin.)

A Marvel-themed SEGA Arcade is currently being worked on in the area. (Photo by Twitter user Crazy4ComicCon.)

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The Amazing Spider-Man has taken over the outside of this building for its marketing. (Photo by Twitter user Crazy4ComicCon.)

Marvel has done some architectural changes next to the Marriott Gaslamp. (Photo by Twitter user Crazy4ComicCon.)

Real Steel street banners in the city. (Images by Flickr user popculturegeek.com.)

Real Steel street banners in the city. (Images by Flickr user popculturegeek.com.)

Cowboys & Aliens poster graces the Hilton. (Photo by Twitter user Crazy4ComicCon.)

An amazing Green Lantern and Flash banner from inside Comic-Con. (Photo taken by Flickr photographer mchulin.)

Finally, Attack the Block will also certainly be having a presence. (Photo taken by Flickr photographer mchulin.)