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There bring been quite a few examples lately of interactive maps created using Mapbox GL's extrusion belongings to brand 3d buildings (including buildings alongside low-cal as well as shade, the Vancouver Zoning Map map as well as the Toronto Zoning Map). All of these maps role the summit information inwards the buildings layer of the map fashion to visualize buildings inwards 3d.
The novel extrusion belongings tin order the sack too hold upwards used alongside your ain information layers inwards Mapbox GL. For event Mapbox has released a map of USA population density which visualizes the population density of each census block equally a 3d tower. The Population Density Inspector allows y'all to explore the release of people living inwards each census block inwards America. The summit of each census block on the map represents the population density (based on census block population counts).
You tin order the sack read well-nigh how Mapbox created the map (with a footling assistance from Turf.js as well as Tippecanoe) on the Mapbox blog.