This interactive map of Hong Kong uses SVG and D3 v4 to let users select districts, with zoom controls for closer inspection. Built with `d3.geoPath` to render geographic boundaries from the included `hongkong.js` data, the visualization updates a text label based on district selection. The code also incorporates the Font Awesome icon library for the zoom buttons and demonstrates common SVG features like event handling and dynamic styling, making it a practical reference for building choropleth-style maps.