55154635_ual_Globe____ArcGIS_Comparison__ArcGIS_KML_Layer_Functionality
[KML Feature] Placemarks
Placemarks are the primary means of marking a location on the earth. They have an associated label, icon, location (including an elevation), and camera position. You can open (identify) and fly to placemarks. ArcGIS fully supports placemarks.
USGS InfoBank Virtual Globe -- ArcGIS Comparison
ArcGIS KML Layer Functionality