At the end of Apostolou Pavlou, near the main entrance to Filopappos Hill, stands an ancient building believed to be the site where the renowned philosopher Socrates was imprisoned. Accused in antiquity of corrupting the morals of the youth and disrespecting the city's gods, Socrates left no writings of his own, but Plato's dialogues, particularly Crito, align with the description of the surviving structure. The prison, located centrally for its time, featured baths, and despite the opportunity to escape with help, Socrates chose to honor his city's laws, embracing his death sentence by drinking hemlock. His famous quote, "ἕν οἶδα, ὅτι οὐδέν οἶδα" (trans.: one thing I know, that I know nothing), encapsulates his philosophical legacy.