The system described herein consists of an isolator and a damping device. The isolator and damping device are used to isolate structures and thus to mitigate earthquake effects on structures. These devices extremely reduce transmitted energy to an isolated superstructure, so that protected structures by means of the devices described herein, may have small or no damages. The isolator has a spherical base fixed to ground via a footing, middle part that responds to the moving base by rotating around the center of a small concave or convex, causing the superstructure to move upwards and downwards vertically, and a top part connected to a superstructure.The damping device consists of a base receives vertical displacement from the superstructure, dampers and springs to dissipate more energy, restrict maximum horizontal displacements and might help returning the superstructure to its stationary position in smooth way. The combination of high reduction in seismic induced forces, extreme reduction or elimination of superstructure rocking and somewhat high independency from ground motions characteristics, structure responses and isolators frequencies, become achievable with these devices described herein. Consequently, structures designed for wind loads and isolated with the devices herein may be protected to adequate amounts that allow minimal or no damages to the superstructures. That means continuous serviceability during and aftermath becomes achievable for the very most of the earthquakes and site characteristics combinations.