If it's good enough for Entourage's Ari Gold to close his deals here, then it qualifies as a power spot for us. But seriously, Mastro's Steakhouse in Beverly Hills is more than just a pretty setting for fake agents on TV shows: The restaurant—dark and intimate downstairs, and more raucously old-school (complete with piano bar) upstairs—is a great place for a special-occasion dinner. It combines precise-yet-warm service, excellent food (bone-in ribeye and lobster mashed potatoes, please), with frequent celeb sightings. Voila: the makings for a great night out.

COST: About $100 per person, plus drinks, tax, and tip.