{"version":"1.0","type":"rich","title":"World Cities Map","description":"This visualization displays a world map with circles marking cities that have populations exceeding 50,000, sourced from the Simplemaps World Cities Database. The map uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath` to render landmasses, graticules, and interiors in SVG. Circle radii are scaled proportionally to population using `d3.scaleSqrt`. The visualization is built with React, D3 v5, and TopoJSON, loading world atlas data from `world-atlas@2.0.2`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/cd591ac793014cd3b59c5577003d66bd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}