The Edward Hopper-inspired Nighthawk Diner in funky area Grünerløkka delivers an authentic 1950s American diner feel, complete with pancakes, burgers, and countless cups of joe.
They use only organic beef in their patties (apart from the vegetarian one, obviously), and serve some pretty spectacular milkshakes. With a spacious, authentically decorated interior, they're open from breakfast 'till late.
Some nights are themed, like the popular 'prohibition night', where folks dressed like flappers and danced to 'all that jazz'.
Definitely worth a visit!