http://www.mahoodsculpture.com/nashville-sculptures/

When was “The Black Sun” sculpture in Nashville, TN built? And how long has it been in the USA?
Nashville’s Bicentennial Mall
The eerie WW II Memorial temple at the Mall features an 18,161-pound black granite globe spinning on 1/8 inch of water. With the Sun shining upon its black mirror-like surface it becomes a ‘Night Sun’ or a ‘Black Sun.
I know exactly what you are talking about.
It’s a permanent sculpture at the Nashville War Memorial Mall.
Very cool.
BUT… I can’t find a single FACTUAL thing about it but some weird stuff.
The weird stuff is interesting though.
http://www.williamhenry.net/cityofsecrets.html
Nashville Now Apearance – Doug Scott Marble Sculpture