There's always plenty to watch at the Denver Diner. At one table you'll see politicians negotiating, at another club-goers arm wrestling, while the shiny, squishy booths host side-by-side vignettes of families fighting and Tinder dates getting somewhere. Outside, Denver Fire Department Station 1 regularly gives diners a sound and light show, and there are always at least two dudes fighting on the sidewalk next to the restaurant. The soaring windows and well-lit space provide the perfect platform for people-watching, whether you're outside looking in or inside looking out (in which case you really should pay some attention to the hearty fare on your plate).