This is what we were building in 2018 with Ayvri, starting from 3d tiles with the aim of building a real-world view by using AI to essentailly re-paint and add detail to what was essentially a high-resolution and faster loading Google Earth (for outside cities, we didn't have building data).

We saw a very diverse group of users, the common uses was paragliders, gliders, and pilots who wanted to view their or other peoples flights. Ultramarathons, mountain bike and some road-races where it provided an interactive way to visualize the course from any angle and distance. Transportation infrastructure to display train routes to be built. The list goes on.