The Dome of the big Newall refractor of the Penteli Astronomical Station of the Observatory of Athens is now a "Visitors center":
http://www.astro.noa.gr/VisCentre/vis_centre.htm
The Dome of the big Newall refractor of the Penteli Astronomical Station of the Observatory of Athens is now a "Visitors center":
http://www.astro.noa.gr/VisCentre/vis_centre.htm