The intersection of Peachtree and 10th streets at Piedmont Park is on fire. The hottest part of the city.
Here's Stone Mountain as outlined by its loyal runners and bicyclists. (Note the glowing walking trail to the summit.)
The Chattahoochee River National Recreation Area is another hot spot.
A bright spot in the south metro is Peachtree City, with its network paved golf cart paths.
Throughout the metro area, high school tracks show up as hot spots, like this track at Campbell High School in Smyrna.
The map doesn't use live data. Instead this is information the company gathered from 2015-2017. Users can opt out of having their data collected. There's more information on that here and here.
Find popular routes in your neighborhood. Here's a link to the Strava map.