Diakopto–Kalavryta railway

The Diakopto–Kalavryta railway (Greek: Οδοντωτός σιδηρόδρομος Διακοπτού - Καλαβρύτων, romanized: Odontotós sidiródromos Diakoptoú - Kalavrýton) is a historic 750 mm (2 ft 5+1⁄2-in) gauge rack railway in Greece. Located on the northern Peloponnese, it runs 22 kilometres (14 mi) from Diakopto through the Vouraikos Gorge and the old Mega Spilaion Monastery and up to Kalavryta, stopping en route at Zachlorou.

Source: Wikipedia — Diakopto–Kalavryta railway (CC BY-SA 4.0)