![Sketch of a Virgo mirror suspension used to reduce the seismic noise](http://public.virgo-gw.eu/wp-content/grand-media/image/VirgoSuperAttenuator_VacuumTower_Sketch.jpg)
The Virgo suspension is about 8 meter high and is placed in a vacuum tank. It is composed of a series of pendulum that reduce the horizontal seismic vibrations that reach the mirrors. Horizontal vibration dampers are also visible. The last suspended element is a mirror payload.
Credits: Virgo Collaboration