This map uses Mapbox with the Mapbox GL JS library.
Advantages:
- Large range of map styles available - see sample gallery.
- Free tier available for low usage.
- Satellite view available.
- Customisable with Mapbox Studio.
- Provides 3d-view maps (eg. view with Ctrl + mouse drag).
Disadvantages:
- Expensive for high usage.
See more information at https://www.mapbox.com/ and pricing info at https://www.mapbox.com/pricing