25 Things You Didn't Know About Mad Men

As "Mad Men" gears up for the home stretch of its final season, the AMC drama will leave TV viewers with a huge void in getting their weekly Don Draper fix. 

The 1960s drama, which began in 2007, has taken us into the world of advertising and the personal lives of some of its iconic characters – from booze to infidelity and all sorts of, uh, madness. As the cool Don Draper, his secretary with big ambitions, Peggy Olson, and Roger "bad habits" Sterling prepare to live on as TV icons, we've rounded up 25 fun facts about "Mad Men" as it heads into its final run.

Check out some of the things you may have never known about the show, including how much it cost to make each episode and all the role swapping that could've gone on in the casting department. Vote on the behind the scenes trivia you think is the most surprising! Once you're done voting, make sure to check out these other shows like Mad Men!