The king of behind the scenes filmography, Mehcad Brooks, is back at it again. This time he takes us on a tour of the famous Warner Brothers lot! See where Friends was filmed, where the Rat Pack permanently signed the set, and take a ride in the Supergirl golf cart! Guest stars Ali Adler who shares a special message for CBS.com users! Catch it below:

"That's CBS.com ... Keep walking!" Ha, love it.

What do you think of this little WB lot tour? Share your comments below and in the forum!