Since I'm a fan of the American composer Philip Glass (who studied at the University of Chicago in the 1950s), I started reading the following article about his new piece, titled "The Triumph of the Octagon," dedicated to the Italian conductor Riccardo Muti (who is now the musical director emeritus for life at the Chicago Symphony Orchestra).
https://music.newcity.com/2023/09/22/octagon-octogenarians-philip-glass-composes-a-new-work-of-friendship-for-muti-and-the-chicago-symphony/This articles has quotes from both of these musical luminaries, and to my surprise, Muti totally out of the blue starts talking about the Castel del Monte WHS in southern Italy.
It turns out that since Muti so enthusiastically talked about this castle to Glass, Glass decided to write this piece "about" the castle for Muti, meaning the Octagon in the title refers to the Octagonal shape of the castle and its 8 towers.
So Castel del Monte now has its own piece of music, which is supposed to premiere in Chicago in a few days.
I thought it's very unusual to hear classical musicians talking about a WHS, so I just wanted to share it here.