OL3-Cesium is a Javascript library for adding a 3D globe to OpenLayers applications. Concretely, a globe is created and synchronized using raster and vector data from the 2D map. This is done without plugin thanks to WebGL. This talk is a general presentation of Cesium and OL3-Cesium. We will compare OpenLayers and Cesium and demonstrate how a 2D map can be enhanced with 3D. Current stand and work in progress will be discussed, both in Cesium and Ol3-Cesium. This talk is for anyone interested in 3D with OpenLayers 3. Come to this talk if you are interested in new ways of presenting and interacting with your map.