Piraeus is the gateway to Athens , which, in turn, is rightfully considered the center of the centers of the whole world, with the main attraction - the acropolis. Piraeus is an old port city serving the port of Athens, the largest port in Greece to date. Piraeus is part of the great Athens, which boasts an abundance of attractions, including unique monuments of national fine art. More than two hundred museums and galleries, including the University History Museum, the Ceramics Archaeological Museum and many others, will hospitably welcome you within their walls and familiarize themselves with the culture of this area.

Santorini, classically Thera, and officially Thira, is an island in the southern Aegean Sea, about 200 km (120 mi) southeast of Greece's mainland. It is the largest island of a small, circular archipelago, which bears the same name and is the remnant of a volcanic caldera. It forms the southernmost member of the Cyclades group of islands, with an area of approximately 73 km2 (28 sq mi) and a 2011 census population of 15,550. The municipality of Santorini includes the inhabited islands of Santorini and Therasia and the uninhabited islands of Nea Kameni, Palaia Kameni, Aspronisi, and Christiana. The total land area is 90.623 km2 (34.990 sq mi).Santorini is part of the Thira regional unit.

The island was the site of one of the largest volcanic eruptions in recorded history: the Minoan eruption(sometimes called the Thera eruption), which occurred about 3,600 years ago at the height of the Minoan civilization. The eruption left a large caldera surrounded by volcanic ash deposits hundreds of metres deep. It may have led indirectly to the collapse of the Minoan civilization on the island of Crete, 110 km (68 mi) to the south, through a gigantic tsunami. Another popular theory holds that the Thera eruption is the source of the legend of Atlantis.

It is the most active volcanic centre in the South Aegean Volcanic Arc, though what remains today is chiefly a water-filled caldera. The volcanic arc is approximately 500 km (310 mi) long and 20 to 40 km (12 to 25 mi) wide. The region first became volcanically active around 3–4 million years ago[citation needed], though volcanism on Thera began around 2 million years ago with the extrusion of dacitic lavas from vents around the Akrotiri.

Chania (Souda), Crete — Charm and History

Chania, located on the northwest coast of Crete, attracts travelers with its historical atmosphere and picturesque Venetian harbor. The narrow streets, buildings, and cozy cafes create a unique charm, blending Venetian and Ottoman architectural elements.

Souda is an important seaport and ferry port situated in the bay of Souda, east of Chania. The port plays a key role in the island's transport network and is strategically important for the region. Around Chania, there are archaeological sites, including the remains of ancient cities, and natural attractions such as caves and World War II memorials.

Corfu or Kerkyra is a Greek island in the Ionian Sea. It is the second largest of the Ionian Islands, and, including its small satellite islands, forms the northwesternmost part of Greece. The island is part of the Corfu regional unit, and is administered as a single municipality, which also includes the smaller islands of Ereikoussa, Mathraki and Othonoi. The municipality has an area of 610,9 km2, the island proper 592,8 km2. The principal city of the island and seat of the municipality (pop. 32,095) is also named Corfu. Corfu is home to the Ionian University.

The island is bound up with the history of Greece from the beginnings of Greek mythology. Its history is full of 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 fifth century BC Greece, along with Athens and Corinth. 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. From medieval times and into the 17th century, the island, having successfully repulsed the Ottomans during several sieges, was recognised as a bulwark of the European States against the Ottoman Empireand became one of the most fortified places in Europe. The fortifications of the island were used by the Venetians to defend against Ottoman intrusion into the Adriatic. Corfu eventually fell under British rule following the Napoleonic Wars. Corfu was eventually ceded by the British Empire along with the remaining islands of the United States of the Ionian Islands, and unification with modern Greece was concluded in 1864 under the Treaty of London.

In 2007, the city's old quarter was added to the UNESCO World Heritage List, following a recommendation by ICOMOS.

Corfu is a very popular tourist destination. The island was the location of the 1994 European Union summit.

Dubrovnik is a Croatian city on the Adriatic Sea. It is one of the most prominent tourist destinations in the Mediterranean Sea, a seaport and the centre of Dubrovnik-Neretva County. Its total population is 42,615 (census 2011). In 1979, the city of Dubrovnik joined the UNESCO list of World Heritage sites.

The prosperity of the city was historically based on maritime trade; as the capital of the maritime Republic of Ragusa, it achieved a high level of development, particularly during the 15th and 16th centuries, as it became notable for its wealth and skilled diplomacy.

In 1991, after the break-up of Yugoslavia, Dubrovnik was besieged by Serbian and Montenegrin soldiers of the Yugoslav People's Army (JNA) for seven months and suffered significant damage from shelling. After repair and restoration works in the 1990s and early 2000s, Dubrovnik re-emerged as one of the top tourist destinations in the Mediterranean.