This 3D bar chart visualizes the top 10 countries most affected by COVID-19, comparing Age and Height metrics for each nation. The visualization uses the d3.x3d library to render an interactive three-dimensional bar chart, with data loaded from a CSV file hosted on GitHub. The implementation combines d3.csv for data parsing, d3.scaleLinear for value mapping, and the d3-x3d chart component to generate the 3D scene, which is displayed within an HTML div element using the X3DOM framework.