The National Mall is just a vast expanse of grass, the cobblestone path in the middle crunching underfoot. The Monument stands out in the distance, Lincoln Hall perched at the other end. Runners pant past, children chase pigeons. I find a bench, sit down, and nibble on a sandwich, the wind blowing the crumbs away. Every few steps there's a museum, rows of red brick and gray walls, but I don't have the energy to visit them all. As the sun sets, the lawn fills with people, watching the sky gradually darken.