Agelasta
Rock formation at Eleusis in Greek mythology
From Wikipedia, the free encyclopedia
In Greek mythology, Agelasta (Ancient Greek: Ἀγέλαστος, Greek: Αγέλαστος πέτρα, "smile-less stone") was the name of the stone on which Demeter rested during her search for Persephone.[1]

In modern culture, Agelasta inspired the title of a documentary by Philippos Koutsaftis (Φίλιππος Κουτσαφτής), called Agelastos Petra (Αγέλαστος Πέτρα, "smile-less stone", 2000).