Facebook's Real "Wall"

When our crew visited Facebook to interview founder Mark Zuckerberg for this week's "60 Minutes" story, we found the real "wall." Check it out.

This Sunday, Facebook founder Mark Zuckerberg will appear on "60 Minutes" in his first television interview since the debut of "The Social Network," a fictionalized account of how he founded the company in his Harvard dorm room. The interview with Zuckerberg, conducted by Lesley Stahl, will be broadcast on Dec. 5 (7:00-8:00PM, ET/PT) on CBS, and online at 60Minutes.com.

Zuckerberg talks about the movie, the direction he's taking his company, and becoming one of the most influential CEOs in America.

Here's a preview clip from 60 Minutes' tour of the Facebook headquarters in Palo Alto, Calif. (Turns out, there's an actual "wall.") Check back on Sunday for more from the tour and our interview with Mark Zuckerberg.