Cube Cities Altus InSite project took 3D geospatial data and combined it with Altus’ database of lease space available to provide a “Flyover” perspective of search results.
The previous version of this system relied on pre-rendered KML data of cities and spaces. The new version that I created was completely rebuilt from the ground up. This system is built using the Yii PHP framework to allow for a service driven architecture. All data is live (not pre-rendered) and is served back as XML (with a KML XSLT transform) or JSON. This lets the new system be completely extensible with an eye toward mobile platforms.
The current REST documentation can be found here: http://cubereports.com/site/apidocs