Isthmus of Corinth
According to the second-century AD geographer Pausanias, a Corinthian legend said that Briareus was the arbitrator in a dispute between Poseidon and Helios (Sun) over some land. Briareus adjudged that the Isthmus of Corinth belonged to Poseidon and the acropolis of Corinth (Acrocorinth) to Helios.