The Sky Dome is a standalone floating hemisphere put up by Ewan Bonham and Star.  It was originally used as a meeting location for TransAct Meditation, a program which is not currently active.
The sky dome allows you to change scenery by simply clicking on the dome and choosing a background from the menu. Individuals are free to come to the dome and use it as a space for their own self-guided meditation.
http://maps.secondlife.com/secondlife/Inspiration%20Island/83/107/216