In chapter 7 we covered 3D in GIS applications. 3D would be an interesting topic to explore, maps are mostly 2D but we live in a 3 dimensional world, so it would make sense to develop maps in the world we recognize in order to get a better visualization in storytelling, map planning, and architectural design. Learning about the feature layers was so cool, it reminded me of GIS 291 during the final chapters where we could add 3D trees and things to our map to give it more dimension and recognize how the map is visualized, it was really fun being able to relearn some of that.
Application idea: something we could use 3D techniques for in Delaware is viewing population density and how populated town is, where it could be more or less populated in order to build more housing, or protect wildlife and not build where it is unnecessary because of the lack of population in that area.