9. Old City
The nation’s most historic square mile has everything you think of when you think of Philly (outside of Frank Reynolds and the manic Always Sunny crew). It’s got the Liberty Bell, Independence Hall, the National Constitution Center, and, like Baltimore’s Fell’s Point, an active party scene stocked with bars and restaurants. Check out Elfreth’s Alley (1702), the nation’s oldest residential street, and stroll the cool indie shops of 3rd St/famous bars of Market St before plunking down in the Great Plaza for the fireworks show every New Year’s and Fourth of July. And while there are plenty of places to get boozy in the area (including Mac’s Tavern, co-owned by Always Sunny actors), you won’t find the McPoyles or Paddy’s Pub. Which is definitely a good thing.