Plomin is a village in the Croatian part of Istria, situated approximately 11 km north of Labin, on an 80 meters high hill. It is a popular destination for tourists traveling through Istria by road. Originally named Flanona, the settlement was built in Roman times, above the bay bearing the same name. Plomin was abandoned after World War II, due to the bay becoming too muddy and its inhabitants, mostly Italians, emigrating to Italy. However, it has since been repopulated, and is today home to approximately 130 people. The buildings in the town are several hundred years old, built on the ruins of the original Roman houses. The walls date back to the 9th century.
Plomin contains two churches, St George the Elder and St George the Younger. Both contain Christian art. St. George the Elder contains Plomin tablet as a part of the outer wall, an 11th century religious text written in the Glagolitic alphabet, the oldest known Slavic alphabet.