After visiting Benihana earlier in this season, Mad Men continued its tour of historic New York restaurants this week with an aborted surprise birthday party at Joe Baum’s Forum of the Twelve Caesars, an infamously over-the-top early theme restaurant that was open from 1957–1975. Though the show didn’t get into it, the restaurant at its height featured everything from waiters clad in tunics to ice buckets made from centurian helmets. And as is the case with Baum’s other restaurants (see La Fonda del Sol), the tiniest objects the Forum are now considered collector’s items. If you want a tiny taste of what the fuss was about, some of the original murals can still be found in A. J. Maxwell’s, which currently resides in the restaurant’s space. And now you know!