From Somewhere in Greece

I know it's from somewhere near Athens but I can't make out the postmark to know exactly. The stamp on the left is a Dusky Grouper from 2012 and on the right is an anti-bullying stamp from 2020. I believe this one specifically deals with social isolation.

Athens, Greece

Athens, Greece

Three of the seven wise men from Greek antiquity: Cleobulus of Lindos, Periander of Corinth and
Solon of Athens.

Greece: Preserve the Polar Regions and Glaciers

A nice little sheet from Greece with a pair of circular stamps.