I believe they used Mapbox for both the basemap and 3D visualisation https://docs.mapbox.com/mapbox-gl-js/example/3d-buildings/ https://docs.mapbox.com/mapbox-

I believe they used Mapbox for both the basemap and 3D visualisation https://docs.mapbox.com/mapbox-gl-js/example/3d-buildings/ https://docs.mapbox.com/mapbox-gl-js/example/3d-buildings/