If you happened to see space invaders, zombies, super heroes and robots wandering around the Capitol this weekend, it was not your imagination. An estimated 40,000 visitors descended on the Walter E. Washington Convention Center in the District for the second annual Awesome Con D.C. for three days of panels, comic book displays and autograph signings on April 18 through 20. Attendance was up quite a bit from the 7,000 of one year ago. On Friday, many of the attendees attempted to break a world record for comic book costumes in front of the U.S. Capitol but came up short. Organizers are hoping to create an event on the East Coast to emulate the giant Comic-Con show held every year in San Diego. We caught up with all the action around the Capitol and inside the show. View our photos of Spiderman and the rest by clicking on the photo icons below.