This example visualizes the locations of past Winter Olympic host cities on a world map. It uses D3 v5 with an SVG rendering approach, drawing geographic boundaries via `d3.geoPath` and plotting points for each host city. The map is generated from a dataset of host city coordinates, with the visualization emphasizing spatial distribution across continents rather than individual data values. The code sets up a blank 960x500 SVG canvas and relies on D3’s projection and path functions to render the map, though no interactive elements or tooltips are included in the provided source.