Adriatic Sea

Corfu (/kɔːrˈf(j)uː/ kor-FOO, -⁠FEW, US also /ˈkɔːrf(j)uː/ KOR-foo, -⁠few) or Kerkyra (Greek: Κέρκυρα, romanized: Kérkyra, pronounced [ˈcercira] ) is one of the Ionian Islands in western Greece, and is separated by the Straits of Corfu from the mainland of Greece and Albania. It is the northernmost island on Greece's west coast except for its satellite Diapontian Islands, which are also the westernmost point of all Greece. Corfu and the Diapontian Islands mark the International Hydrographic Organization border between the Ionian Sea to the south and the Adriatic Sea to the north. Within the Ionian Islands region, the regional unit of Corfu extends as far south as the Paxoi. The capital and largest city of the regional unit is also named Corfu.

The island is bound up with the history of Greece from the beginnings of Greek mythology, and is marked by numerous battles and conquests. Ancient Korkyra took part in the Battle of Sybota which was a catalyst for the Peloponnesian War, and, according to Thucydides, the largest naval battle between Greek city states until that time. Thucydides also reports that Korkyra was one of the three great naval powers of Greece in the fifth century BCE, along with Athens and Corinth. Ruins of ancient Greek temples and other archaeological sites of the ancient city of Korkyra are located in Palaiopolis. Medieval castles punctuating strategic locations across the island are a legacy of struggles in the Middle Ages against invasions by pirates and the Ottomans. Two of these castles enclose its capital, which is the only city in Greece to be surrounded in such a way. As a result, Corfu's capital has been officially declared a kastropolis ("castle city") by the Greek government.

Apulia (/əˈpuːliə/ ə-POO-lee-ə), also known by its Italian name Puglia (Italian: [ˈpuʎʎa]), is a region of Italy, located in the southern peninsular section of the country, bordering the Adriatic Sea to the east, the Strait of Otranto and Ionian Sea to the southeast and the Gulf of Taranto to the south. The region comprises 19,345 square kilometers (7,469 sq mi), and has 3,874,166 inhabitants as of 2025. It is bordered by the other Italian regions of Molise to the north, Campania to the west, and Basilicata to the southwest. The regional capital is Bari.

In ancient times, more precisely at the beginning of the first millennium BC, the region of Apulia was inhabited by the Iapygians, while during the 8th century BC its coastal areas were populated by ancient Greeks. Later, the region was conquered by the ancient Romans. It was then conquered by the Byzantines, followed by the Normans, the Aragonese and the Spanish. Subsequently, it became part of the Kingdom of the Two Sicilies, to then be annexed to the unified Kingdom of Italy after the Expedition of the Thousand.

The Republic of Venice, officially the Most Serene Republic of Venice and traditionally known as La Serenissima, was a sovereign state and maritime republic with its capital in Venice. Founded, according to tradition, in 697 by Paolo Lucio Anafesto, over the course of its 1,100 years of history it established itself as one of the major European commercial and naval powers. Initially extended in the Dogado area (a territory currently comparable to the Metropolitan City of Venice), during its history it annexed a large part of Northeast Italy, Istria, Dalmatia, the coasts of present-day Montenegro and Albania as well as numerous islands in the Adriatic and eastern Ionian seas. At the height of its expansion, between the 13th and 16th centuries, it also governed Crete, Cyprus, the Peloponnese, a number of Greek islands, as well as several cities and ports in the eastern Mediterranean.

The islands of the Venetian Lagoon in the 7th century, after having experienced a period of substantial increase in population, were organized into Maritime Venice, a Byzantine duchy dependent on the Exarchate of Ravenna. With the fall of the Exarchate and the weakening of Byzantine power, the Duchy of Venice arose, led by a doge and established on the island of Rialto; it prospered from maritime trade with the Byzantine Empire and other eastern states. To safeguard the trade routes, between the 9th and 11th centuries the Duchy waged several wars, which ensured its complete dominion over the Adriatic. Owing to its participation in the Crusades, Venice increasingly penetrated into eastern markets and, between the 12th and 13th centuries, managed to extend its power into numerous eastern emporiums and commercial ports. The supremacy over the Mediterranean Sea led the Republic to the clash with Genoa, which lasted until the 14th century, when, after having risked complete collapse during the War of Chioggia (with the Genoese army and fleet in the lagoon for a long period), Venice quickly managed to recover from the territorial losses suffered with the Treaty of Turin of 1381 and begin expansion on the mainland.

The Battle of Actium was a naval battle fought between Octavian's maritime fleet, led by Marcus Agrippa, and the combined fleets of both Mark Antony and Cleopatra. The battle took place on 2 September 31 BC in the Ionian Sea, near the former Roman colony of Actium, Greece, and was the climax of over a decade of rivalry between Octavian and Mark Antony.

In early 31 BC, the year of the battle, Antony and Cleopatra were temporarily stationed in Greece. Mark Antony possessed 500 ships and 70,000 infantry and made his camp at Actium, while Octavian, with 400 ships and 80,000 infantry, arrived from the north and occupied Patrae and Corinth, where, with the help of Marcus Vipsanius Agrippa, he managed to cut Antony's southward communications with Egypt via the Peloponnese. Octavian had previously gained a preliminary victory in Greece, where his navy successfully ferried troops across the Adriatic Sea under the command of Agrippa. Octavian landed on mainland Greece, opposite the island of Corcyra (modern Corfu), and proceeded south on land.

Heraclea Lyncestis, also transliterated Herakleia Lynkestis (Ancient Greek: Ἡράκλεια Λυγκηστίς; Latin: Heraclea Lyncestis; Macedonian: Хераклеја Линкестис), was an ancient Greek city in Macedon, ruled later by the Romans. Its ruins are situated 2 km (1.2 mi) south of the present-day town of Bitola, North Macedonia. In the early Christian period, Heraclea was an important Episcopal seat and a waypoint on the Via Egnatia that once linked Byzantium with Rome through the Adriatic seaport of Dyrrachium. Some of its bishops are mentioned in synods in Serdica and other nearby towns. The city was gradually abandoned in the 6th century AD following an earthquake and Slavic invasions.

Bitola (/ˈbiːtoʊlə, -tələ/; Macedonian: Битола [ˈbitɔɫa] ) is a city in the southwestern part of North Macedonia. It is located in the southern part of the Pelagonia valley, surrounded by the Baba, Nidže, and Kajmakčalan mountain ranges, 14 kilometres (9 miles) north of the Medžitlija-Níki border crossing with Greece. The city stands at an important junction connecting the south of the Adriatic Sea region with the Aegean Sea and Central Europe, and it is an administrative, cultural, industrial, commercial, and educational centre. It has been known since the Ottoman period as the "City of Consuls", since many European countries had consulates in Bitola.

Bitola, known during the Ottoman Empire as Manastır or Monastir, is one of the oldest cities in North Macedonia. It was founded as Heraclea Lyncestis in the middle of the 4th century BC by Philip II of Macedon. The city was the last capital of the First Bulgarian Empire (1015–1018) and the last capital of Ottoman Rumelia, from 1836 to 1867. According to the 2002 census, Bitola is the third largest city in the country, after the capital Skopje and Kumanovo. Bitola is also the seat of the Bitola Municipality.

Ravenna (/rəˈvɛnə/ rə-VEN-ə; Italian: [raˈvenna], also locally [raˈvɛn(n)a] ; Romagnol: Ravèna, Ravêna) is the capital city of the Province of Ravenna, in the Emilia-Romagna region of Northern Italy. It was the capital city of the Western Roman Empire during the 5th century until its collapse in 476, after which it served as the capital of the Ostrogothic Kingdom and then the Byzantine Exarchate of Ravenna. It has 156,444 inhabitants as of 2025.

Initially settled by the Umbri people, Ravenna came under Roman Republic control in 89 BC. Octavian built the military harbor of Classis at Ravenna, and the city remained an important seaport on the Adriatic until the early Middle Ages. The city prospered under imperial rule. In 401, Western Roman emperor Honorius moved his court from Mediolanum to Ravenna; it then served as capital of the empire for most of the 5th century.

The Italian geographic region, Italian physical region or Italian region is a geographical region of Southern Europe delimited to the north by the mountain chains of the Alps. This subregion is composed of a peninsular and continental part and an insular part. Located between the Balkan Peninsula and the Iberian Peninsula, it protrudes into the centre of the Mediterranean Sea and overlooks the Adriatic Sea, the Ionian Sea, the Ligurian Sea, the Sardinian Channel, the Sea of Corsica, the Sea of Sardinia, the Strait of Sicily, and the Tyrrhenian Sea.

The Italian geographic region, in its traditional and most widely accepted extent, has an area of approximately 324,000 square kilometres (125,000 sq mi), which is greater than the area of the entire Italian Republic (301,230 square kilometres (116,310 sq mi)). The region also includes territories that are sovereign parts of Croatia, France, Slovenia, and Switzerland, as well as the four small sovereign states of the Principality of Monaco, the Republic of Malta, the Republic of San Marino, and the Vatican City State (the Holy See).

The Alps (/ælps/) are some of the highest and most extensive mountain ranges in Europe, stretching approximately 1,200 km (750 mi) across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia.

The Alpine arch extends from Nice on the western Mediterranean to Trieste on the Adriatic and Vienna at the beginning of the Pannonian Basin. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn.