Head of Lucius Aelius Verus (?), marble, 2nd c.A.D., Athens, Greece.
The Ancient Agora, Athens — the civic heart of classical Athens, where Socrates questioned his fellow citizens, juries of hundreds voted by ballot, and the democracy invented itself in real time. The reconstructed Stoa of Attalos now houses a museum; the open ground between the ruins is still, somehow, contemplative. Jebulon, CC0, via Wikimedia Commons