Kallikratis Plan in the context of "Administrative divisions of Greece"

The 74 regional units of Greece are the country's third-level administrative units (counting decentralized administrations as first-level). They are subdivisions of the country's 13 regions, and are further divided into municipalities.

They were introduced as part of the Kallikratis administrative reform on 1 January 2011 and are comparable in area and, on the mainland, coterminous with the "pre-Kallikratis" prefectures of Greece.

The municipality of Corinth is a Greek municipality located in the Peleponnese region established on 1 January 2011 under the Kallikratis Plan for local government reform. The municipality is made up of five previous municipalities: Assos-Lechaio, Corinth, Saronikos, Tenea and Solygeia. The area of the new municipality is 611.29 square kilometers and it has a population of 55,641, based on the 2021 census. The seat of the municipality is Corinth and its symbol is the Pegasus.

Vergina (Greek: Βεργίνα, Vergína [verˈʝina]) is a small town in Northern Greece, part of the Veria municipality in Imathia, Central Macedonia. Vergina was established in 1922 in the aftermath of the population exchanges after the Treaty of Lausanne and was a separate municipality until 2011, when it was merged with Veroia under the Kallikratis Plan.

Vergina is best known as the site of ancient Aigai (Ancient Greek: Αἰγαί, Aigaí, Latinized: Aegae), the first capital of Macedon. In 336 BC Philip II was assassinated in Aigai's theatre and his son, Alexander the Great, was proclaimed king. While the resting place of Alexander the Great is unknown, researchers uncovered three tombs at Vergina in 1977 – referred to as tombs I, II and III.