Entering the 3D World with QGIS
Even though I am still learning the basics of D3, I found QGIS to be a fascinating program to work with.
I recreated the tutorial using MindReader's data at home and found it to be relatively straightforward. I certainly didn't encounter as many problems as I do when working with D3, for instance. I still don't understand how the 3D elements (buildings, for example) are created, but I think if given existing files for those, I would be able to construct something around a dataset.
But easier said than done, I suppose...
(I couldn't figure out a way to host the visualization, so here is an screenshot for it): Github link