France is a country whose metropolitan territory is located in Western Europe and that also comprises various overseas islands and territories located in other continents. Metropolitan France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. French people often refer to Metropolitan France as L’Hexagone (The “Hexagon”) because of the geometric shape of its territory. France is a unitary semi-presidential republic. Its main ideals are expressed in the Declaration of the Rights of Man and of the Citizen.

France is bordered by Belgium, Luxembourg, Germany, Switzerland, Italy, Monaco, Andorra, and Spain. Due to its overseas departments, France also shares land borders with Brazil and Suriname (bordering French Guiana), and the Netherlands Antilles (bordering Saint-Martin). France is also linked to the United Kingdom by the Channel Tunnel, which passes underneath the English Channel.

France has been one of the world's foremost powers since the latter half of the 17th century. In the 18th and 19th centuries, France built one of the largest colonial empires of the time, stretching across West Africa and Southeast Asia, prominently influencing the cultures and politics of the regions. France is a developed country, with the sixth (nominal GDP) or eighth (PPP) largest economy in the world. It is the most visited country in the world, receiving 82 million foreign tourists annually. France is one of the founding members of the European Union, and has the largest land area of all members. France is also a founding member of the United Nations, and a member of the Francophonie, the G8, NATO, and the Latin Union. It is one of the five permanent members of the United Nations Security Council; it is also an acknowledged nuclear power with 350 active warheads and 59 nuclear power plants.

Architecture

There is, technically speaking, no architecture named French Architecture, although that has not always been true. Gothic Architecture's old name was French Architecture (or Opus Francigenum). The term “Gothic” appeared later as a stylistic insult and was widely adopted. Northern France is the home of some of the most important Gothic cathedrals and basilicas, the first of these being the Saint Denis Basilica (used as the royal necropolis); other important French Gothic cathedrals are Notre-Dame de Chartres and Notre-Dame d'Amiens. The kings were crowned in another important Gothic church: Notre-Dame de Reims. Aside from churches, Gothic Architecture had been used for many religious palaces, the most important one being the Palais des Papes in Avignon.

During the Middle Ages, fortified castles were built by feudal nobles to mark their powers against their rivals. When King Philip II took Rouen from King John, for example, he demolished the ducal castle to build a bigger one. Fortified cities were also common, unfortunately most French castles did not survive the passage of time. This is why Richard the Lionheart's Château-Gaillard was demolished, as well as the Château de Lusignan. Some important French castles that survived are Chinon, Château d'Angers, the massive Château de Vincennes and the so called Cathar castles.

Before the appearance of this architecture France had been using Romanesque architecture like most of Western Europe (with the exception of the Iberian Peninsula, which used Mooresque architecture). Some of the greatest examples of Romanesque churches in France are the Saint Sernin Basilica in Toulouse and the remains of the Cluniac Abbey (largely destroyed during the Revolution and the Napoleonic Wars).

The end of the Hundred Years' War marked an important stage in the evolution of French architecture. It was the time of the French Renaissance and several artists from Italy and Spain were invited to the French court; many residential palaces, Italian-inspired, were built, mainly in the Loire Valley. Such residential castles were the Château de Chambord, the Château de Chenonceau, or the Château d'Amboise. Following the renaissance and the end of the Middle Ages, Baroque Architecture replaced the gothic one. However, in France, baroque architecture found a greater success in the secular domain than in the religious one. In the secular domain the Palace of Versailles has many baroque features. Jules Hardouin Mansart can be said to be the most influential French architect of the baroque style, with his very famous baroque dome of Les Invalides. Some of the most impressive provincial baroque architecture is found in places that were not yet French such as the Place Stanislas in Nancy. On the military architectural side Vauban designed some of the most efficient fortresses of Europe and became a very influential military architect.

After the Revolution the Republicans favoured Neoclassicism although neoclassicism was introduced in France prior to the revolution with such building as the Parisian Pantheon or the Capitole de Toulouse. Built during the French Empire the Arc de Triomphe and Sainte Marie-Madeleine represent this trend the best.

Under Napoleon III a new wave of urbanism and architecture was given birth. If some very extravagant buildings such as the neo-baroque Palais Garnier were built, the urban planing of the time was very organised and rigorous. For example Baron Haussmann rebuilt Paris. These times also saw a strong Gothic-Revival trend across Europe, in France the associated architect was Eugène Viollet-le-Duc. In the late 19th century Gustave Eiffel designed many bridges (like the Garabit viaduct) and remains one of the most influential bridge designer of his time, although he is best remembered for the Eiffel Tower.

In the 20th century the Swiss Architect Le Corbusier designed several buildings in France. More recently French architects have combined both modern and old architectural styles. The Louvre Pyramid is a good example of modern architecture added to an older building. Certainly the most difficult buildings to integrate within French cities are skyscrapers, as they are visible from afar. France's largest financial district is La Defense, where a significant number of skyscrapers are located. Other massive buildings that are a challenge to integrate into their environment are large bridges; a good example of the way this has been done is the Millau Viaduct. Some famous modern French architects include Jean Nouvel or Paul Andreu.