One of the most important routes of religious interest in Greece is the "Footsteps of the Apostle Paul". Paul, although he did not belong to the close circle of the 12 disciples of Christ, is an important figure for the Christian religion. He spread Christianity like no other and for this reason he was called an equal apostle and "Apostle of the Gentiles"Since 1896, systematic archaeological investigations of the Corinth Excavations by the American School of Classical Studies at Athens have revealed large parts of the ancient city, and recent excavations conducted by the Greek Ministry of Culture have brought to light important new facets of antiquity. For Christians, Corinth is well known from the two letters of Saint Paul in the New Testament, First and Second Corinthians. Corinth is also mentioned in the Acts of the Apostles as part of Paul the Apostle's missionary travels. In addition, the second book of Pausanias' Description of Greece is devoted to Corinth.

The place were Apostle Paul baptised the first Christians. In ancient times, Kenchreai was one of the two ports of the inland city-state of Corinth. While Kenchreai served the eastern trade routes via the Saronic Gulf, Lechaion on the Corinthian Gulf served the trade routes leading west to Italy and the rest of Europe. Situated on the eastern side of the Isthmus of Corinth, Kenchreai sat at a natural crossroads for ships arriving from the east and overland traffic heading north and south between central Greece and the Peloponnese.

Acrocorinth (Greek: Ακροκόρινθος, lit. 'Upper Corinth' or 'the acropolis of ancient Corinth') is a monolithic rock overlooking the ancient city of Corinth, Greece. In the estimation of George Forrest, "It is the most impressive of the acropolis of mainland Greece." Acrocorinth, looking north towards the Gulf of Corinth. With its secure water supply, Acrocorinth's fortress was repeatedly used as a last line of defense in southern Greece because it commanded the Isthmus of Corinth, repelling foes from entry by land into the Peloponnese peninsula.