{"version":"1.0","type":"rich","title":"Unique countries map","description":"A world map highlights countries frequented by travelers, coloring them green while leaving others gray. The visualization uses a Mercator projection rendered as SVG paths via `d3.geoPath`, with zoom and pan enabled through D3's `zoom` behavior. Geographic data comes from TopoJSON world-atlas, merged with country attributes from a TSV file and a custom list of ISO country codes to determine which nations receive the highlight.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f942bc141df64124a72c06171f529ad8?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}