This visualization shows tourist counts for multiple countries across several years as a series of layered area charts. Each colored area represents one year, with countries on the x-axis and tourist counts on the y-axis. The chart loads CSV data from a GitHub gist, transposes it, and renders it as SVG using D3 v7, including `d3.area()`, `d3.scaleBand()`, `d3.scaleLinear()`, `d3.scaleOrdinal()` with `d3.schemeCategory10`, and `d3.axisBottom()`/`d3.axisLeft()`. Axis labels are added, and x-axis tick labels are rotated for readability.