0
The temple of Zeus was built in roman times. It is not ancient greek. As well as the Roman Agora and the Library.
The castle of Salonica and many monuments there date from the eastern roman times.
Anything you mention is in the late middle ages. In the 12th century the Roman Empire was in complete decay.
Additionally, apart from Salonica, the rest of Greece did not have big urban settlements.
Anything big was in and around Constantinople.
Greek Orthodox Cathedrals have never been huge.
It's only been the Hagia Sophia and that was built in the very early centuries, highly roman influenced.
No, northern winters are still harsher->more discipline and cooperativeness.
Bookmarks