I love the Cesium Project! That's a super cool concept. I love it already. Are you still developing this application more? I could see how setting flight paths could be useful for drone pilots, planners, engineers, and other people who would want to set a route and just view what's there. Land use management might even be able to use this. I mean there's tons of applications. I'm aware of other tools that do similar things, but they're just recordings for the most part not interactive. I really enjoyed the Cesium map. Good Work!