The DC Comics headquarters is home to one of the greatest collections of comic book memorabilia in the world.

Mark visits with Scott Zilner, whose passion for robots and monsters resulted in a huge collection and hosting a convention.

Jeff Bond's garage holds thousands of handmade spaceship models, and he even played Dr McCoy in a fan made `Star Trek' series. So Mark sets him up with a visit to the most iconic spaceship model of them all, the Nostromo.

Mark visits pinball machine collector Gene Lewin, owner of the Vintage Arcade Superstore.

One of the greatest collections of Hollywood film props ever amassed resides in the quiet suburbs of the San Fernando Valley. Mark takes a rare look inside the home of world famous collector, Bob Burns.

Mark meets collector Brandon Alinger, who convinced his family to travel to Tunisia, Africa, in search of movie props.