Yup. Phi is in a ton of stuff, and almost anything with 5-sided symmetry. This is the connection between the golden rectangle, the pentagram and the icosahedron.
"Islamic Star Knot & Vector Equilibrium" Inbox me an offer to own it!
Cordoba Mosque, Andalucia, Spain.
Dome with ceiling mosaics in front of the mihrab, c. 965.