Wikipedia uses a variety of multimedia files to enhance content and explain concepts that are difficult to convey via text alone.
On Wikipedia, KML files commonly accompany articles related to linear features such as roads, train lines, flight paths, and more; KML files may also be used with polygon features (area within a boundary), such as parks, towns, and more.
In articles with a related KML file, the following box is displayed, usually towards the bottom of the page: Articles may display additional links at the top-right of the page: For articles which display links at the top-right of the page, click on the globe symbol ()[1] to show a draggable, zoomable, and clickable map, with the linear feature from the KML file highlighted in blue.
The exact method for downloading the file will vary depend on your operating system and web browser.
If after clicking on the KML file link, a plain page full of code is displayed (see image for example):