Anything ancient Greek and Roman related.
1) go to ubi erat lupa site
2) find ancient art in the museum
3) get the pic
4) make wallpaper
from the belvedere in vienna
Temple of Hephaestus in Athens (also known as Hephaesteum/Ἡφαιστεῖον and Theseum/Θησεῖον)
Aphrodite and Anchises by William Blake Richmond. Anchises is the father of Aeneas.
Random woman by Lawrence Alma-Tadema