"Price: $$ The “proper burger” (gouda, pickles, charred onions, sweet chile sauce, arugula, garlic aioli, brioche bun) at Duke’s carries a registered trademark. The East London-style pub’s Dupont original reopened last year, and there are outposts in Woodley Park and Foggy Bottom. A new location just debuted in Potomac, Maryland. Insider tip: The pint-sized Woodley Park location sits directly across from the zoo (and has a panda-themed pop-up)." - Tierney Plumb