In the movie Mission: Impossible - Ghost Protocol, Tom Cruise climbed the Burj Khalifa skyscraper in Dubai with the help of special gloves that "stick" to the wall.

Such gloves may not be in the real of fiction for much longer, thanks to researchers who invented material inspired by gecko feet:

For years, biologists have been amazed by the power of gecko feet, which let these 5-ounce lizards produce an adhesive force roughly equivalent to carrying nine pounds up a wall without slipping. Now, a team of polymer scientists and a biologist at the University of Massachusetts Amherst have discovered exactly how the gecko does it, leading them to invent "Geckskin," a device that can hold 700 pounds on a smooth wall.

Link - via Next Big Future