Northern Liberties

North Third

801 North Third Street; 215-413-3666; norththird.com

Standard Tap

901 North Second Street; 215-238-0630; standardtap.com

The Dapper Dog (pictured above)

Corner of Second and Poplar; 203-887-8813; thedapperdog.org

If Philadelphia has a late-night strip, it's the bike-racked, dog-friendly stretch between retro-artsy North Third and retro-woody Standard Tap, each less than twenty years old and both already institutions in a town where a legacy is typically measured in centuries. And if that isn't enough fuel, there's a food truck parked on the corner Fridays and Saturdays from 9:30 P.M. to 2:30 A.M. dispensing grilled, split all-beef hot dogs with creative toppings — some more so than others, like the mashed potato dog or Greek salad dog. And like most food trucks, the later it gets, the better it looks.