Atlas Obscura
Caves of Diros in Pirgos Dirou, Greece
These Caves found at Diros in the Mani region of the Peloponnese peninsula are one of the most stunning natural sights in Greece and are also of great archeological significance. The cave was known to locals long before, but it was only in 1949 that exploration began. By 1967, when the caves were first opened to visitors, only around 1600 meters of the system had been mapped. Today, nearly 15 k…