This example shows the top 10 billionaires in 2021, grouped by their country of origin, using a 3D stacked bar chart. The chart displays net worth in billions of USD, with each bar representing a billionaire and colored segments indicating their home country. It uses the Highcharts library with the highcharts-3d module, enabling 3D column rendering through the `options3d` configuration for depth and rotation. The data is hardcoded into three series for the United States, France, and India, with categories listed on the x-axis.