This bar chart displays the top 10 countries by all-time Olympic medal count, with the United States leading at 2,828 medals and Norway at 520. The data comes from Wikipedia. Rendered as an SVG, the chart uses D3 v5 APIs including `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to map medal counts to bar lengths and country names to vertical positions. A steelblue fill colors the bars, with the title and axis labels styled via CSS.