Oia, Santorini, Greece

Oia (Greek: Οία, pronounced [ˈi.a]) is a former community on the islands of Thira (Santorini) and Therasia, in the Cyclades, Greece. Since the 2011 local government reform it is part of the municipality Santorini, of which it is a municipal unit. It covers the whole island Therasia and the northwesternmost part of Santorini, which it shares with the municipal unit of Santorini. The population was 1,230 inhabitants at the 2001 census, and the land area is 19.449 km². The population and land area are distributed as follows: 962 persons on 10.150 km² in Santorini, and 268 persons on 9.299 km² in Therasia.

Night photography refers to photographs taken outdoors between dusk and dawn. Night photographers generally have a choice between using artificial light and using a long exposure, exposing the scene for seconds, minutes, and even hours in order to give the film or digital sensor enough time to capture a usable image. With the progress of high-speed films, higher-sensitivity digital image sensors, wide-aperture lenses, and the ever-greater power of urban lights, night photography is increasingly possible using available light.

Santorini (Greek: Σαντορίνη, pronounced [sadoˈrini]), classically Thera (pron.: /ˈθɪrə/), and officially Thira (Greek: Θήρα [ˈθira]), is an island in the southern Aegean Sea, about 200 km (120 mi) southeast from 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 comprises 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.

Greece (Greek: Ελλάδα [eˈlaða] Elláda), officially the Hellenic Republic (Ελληνική Δημοκρατία [eliniˈci ðimokraˈti.a] Ellīnikī́ Dīmokratía), is a country in Southeast Europe. According to the 2011 census, Greece's population is around 11 million. Athens is the nation's capital and largest city, its urban area also including Piraeus.

Greece is strategically located at the crossroads of Europe, Asia, the Middle East, and Africa, and has land borders with Albania, Skopje and Bulgaria to the north, and Turkey to the northeast. The Aegean Sea lies to the east of mainland Greece, the Ionian Sea to the west, and the Mediterranean Sea to the south. Greece has the 11th longest coastline in the world at 13,676 km (8,498 mi) in length, featuring a vast number of islands (approximately 1,400, of which 227 are inhabited), including Crete, the Dodecanese, the Cyclades, and the Ionian Islands among others. Eighty percent of Greece consists of mountains, of which Mount Olympus is the highest at 2,917 m (9,570 ft).

The Cyclades (pron.: /ˈsɪklədiːz/; Greek: Κυκλάδες, [cikˈlaðes]) is a Greek island group in the Aegean Sea, southeast of mainland Greece and a former administrative prefecture of Greece. They are one of the island groups which constitute the Aegean archipelago. The name refers to the islands around (κυκλάς), the sacred island of Delos. The Cyclades is where the native Greek breed of cat (the Aegean cat) originated.

A city is a relatively large and permanent settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.

For example, in the American state of Massachusetts an article of incorporation approved by the local state legislature distinguishes a city government from a town. In the United Kingdom and parts of the Commonwealth of Nations, a city is usually a settlement with a royal charter. Historically, in Europe, a city was understood^{[citation needed]} by some to mean an urban settlement with a cathedral. The belief in this distinction is also common in England, where the presence of a cathedral is thought by many to distinguish a 'city' (sometimes called a 'cathedral city') from a 'town' (which has a parish church^{[citation needed]}); the belief is incorrect (Chelmsford, for example, became a city only in 2012, but had a cathedral for most of the 20^th century).