{"version":"1.0","type":"rich","title":"The number of completed highest structures in the world cities","description":"This histogram shows the total number of completed buildings in world cities, binned by the year each city first completed a building taller than 150 meters. The chart uses D3’s `scaleTime`, `histogram`, and `timeYears` functions to bin the data, with React components for rendering the axes and marks as SVG rectangles. The data is loaded via `d3.csv` from a GitHub gist, and each bar represents the sum of all buildings across cities in that year range, with hover tooltips showing exact counts.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/538256d9d86047838d467f643a7cd303?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}