Agrigento was once the third largest ancient Greek city (after nearby Syracuse, and Athens), and the glimpse of it in the Rick Steve vid wasn't enough. The Tiormina theater Rick visited was (in the 1990s) used in the Woody Allen movie "Mighty Aphrodite".
Valley of the Temples (Agrigento), Italy in 4K (UHD) HDR
I have been to valley of temples. Amazing. To see the best Greek temples go to Sicily.
Neat