Free, Open-Source 3D Maps
OpenGlobus is a javascript library for creating interactive 3d globes. The library uses WebGL as well as is completely open-source as well as costless to use.
OpenGlobus supports GeoJSON, map tile layers, ikon as well as video overlays as well as vector layers for displaying polylines as well as polygons. The API for OpenGlobus is good documented, withal every bit yet at that spot aren't whatsoever written tutorials for getting started amongst the library. If you lot desire to brand an OpenGlobus map hence you lot are in all probability best starting amongst 1 of the many exhibit maps. You tin forcefulness out larn a skilful consider of the hit of features that OpenGlobus supports on the Examples page, which includes a let out of exhibit 3d globes created amongst OpenGlobus.
You mightiness besides like CesiumJS, which is unopen to other an open-source JavaScript library for creating interactive 3d globes as well as maps.