All [OSM Buildings](http://wiki.openstreetmap.org/wiki/Buildings). All building tags are imported ([`building=*`](http://wiki.openstreetmap.org/wiki/Key:building)). The buildings are not yet ready for 3D rendering support and any help to improve
An approximated height from levels and height of building after the method of Paul Norman in [OSM Clear](https://github.com/ClearTables/osm-clear). For future 3D rendering of buildings.