"Union Market’s rooftop is a favorite picnic spot, thanks to its faux grass-covered outdoor oasis called Hi-Lawn. The massive rooftop is planning five days of free-to-attend festivities around the 4th of July weekend, culminating in cornhole, sack race, and tug-of-war competitions during the day on the actual holiday before you watch the fireworks display from the rooftop in the evening. The menu includes adult juice boxes, boozy ice pops, Tajin-and-lime watermelon salad, and hot dogs cooked on a rooftop grill, including a half smoke-style “DC Dog.”"