I wanted to create a map of all the activies I've ever done. I utilized the Strava API and was able to pull all of my activities, convert Strava's geospatial data from a google polyline to a linestring, then create a geojson from it.
Here is the map:
<script src="https://embed.github.com/view/geojson/tkravits/StravaMap/master/Strava_Map_Minus_Secret.geojson"></script>Here is the Code