Los Angeles - From Pokemon onesies to Disney frocks, comic and film fans from across the world have descend on California to spend four days geeking out.
Every July, San Diego transforms into Nerd Town USA, as tens of thousands of monsters, aliens, manga characters and caped crusaders throng the streets for Comic-Con International.
Since its humble beginnings in 1970 as a convention of a few dozen geeks who swapped superhero magazines, it has exploded into America's largest and most spectacular pop culture event.
The main attraction are the awesome costumes that fans rock. Here are 6 fans whose game is strong.
1. The League of Hatters.
2. Silver Surfer.
3. Jose Davalos, dressed as the Hades character from Hercules.
4. Fans dressed as Captain Marvel, from left, The Joker and Freddy Krueger.
5. Fans dressed as characters from Mad Max: Fury Road.
6. A fan dressed as Wonder Woman.
(Photos: AP/AFP)