A world map depicts the top 10,000 cities by population as glowing yellow-to-white dots, with capital cities outlined in red. The dark ocean and landmasses provide a night-time aesthetic, and the map is rendered using a Natural Earth projection. The visualization uses d3.geoPath to draw the world map and graticule, while city positions are projected with d3.geoNaturalEarth1. Data comes from the Simplemaps World Cities Database, and city point sizes are scaled by the square root of their population.