A few words about Paris

Paris, the capital city of France, is situated on the Seine river, in northern France, at the heart of the Île-de-France region. The city of Paris within its administrative limits (largely unchanged since 1860) has an estimated population of 2,167,994 (January 2006). The Paris unité urbaine (or urban area) extends well beyond the administrative city limits and has an estimated population of 9.93 million (in 2005). The Paris aire urbaine (or metropolitan area) has a population of nearly 12 million, and is one of the most populated metropolitan areas in Europe.
An important settlement for more than two millennia, Paris is today one of the world's leading business and cultural centres, and its influence in politics, education, entertainment, media, fashion, science and the arts all contribute to its status as one of the world's major global cities.   The Paris Region (Île-de-France) is Europe's biggest city economy, and is fifth in the World's list of cities by GDP. With €500.8 billion, it produced more than a quarter of the gross domestic product (GDP) of France in 2006. The Paris Region hosts 36 of the Fortune Global 500 companies  in several business districts, notably La Défense, the largest purpose-built business district in Europe.  Paris also hosts many international organizations such as UNESCO, the OECD, the ICC and the informal Paris Club.

Paris is located in the north-bending arc of the river Seine and includes two islands, the Île Saint-Louis and the larger Île de la Cité, which form the oldest part of the city. Overall, the city is relatively flat, and the lowest elevation is 35 metres (114 ft) above sea level. Paris has several prominent hills, of which the highest is Montmartre at 130 m (426 ft).

Paris, excluding the outlying parks of Bois de Boulogne and Bois de Vincennes, covers an oval measuring 86.928 square kilometres (33.56 square miles) in area.  The city's last major annexation of outlying territories in 1860 not only gave it its modern form, but created the twenty clockwise-spiralling arrondissements (municipal boroughs). From the 1860 area of 78 km² (30.1 sq mi), the city limits were expanded marginally to 86.9 km² (34 sq mi) in the 1920s. In 1929 the Bois de Boulogne and Bois de Vincennes forest parks were officially annexed to the city, bringing its area to the present 105.397 km² (40.69 sq mi).

"Modern" Paris is the result of a vast mid-19th century urban remodeling. For centuries the city had been a labyrinth of narrow streets and half-timber houses, but beginning in 1852, the Baron Haussmann's vast urbanisation levelled entire quarters to make way for wide avenues lined with neo-classical stone buildings of bourgeoise standing; most of this 'new' Paris is the Paris we see today.

These Second Empire plans are in many cases still applied today, as the city of Paris is still imposing the then-defined "alignement" law (building facades placed according to a pre-defined street width) on many new constructions. A building's height was also defined according to the width of the street it lines, and Paris's building code has seen few changes since the mid-19th century to allow for higher constructions. It is for this reason that Paris is mainly a "flat" city.

Paris's unchanging borders, strict building codes and lack of developable land have together contributed in creating a phenomenon called muséification (or "museumification") as, at the same time as they strive to preserve Paris's historical past, existing laws make it difficult to build within the city limits the larger buildings and utilities needed for a growing population. Many of Paris's institutions and economic infrastructure are already located in, or are planning on moving to, the suburbs. The financial (La Défense) business district, the main food wholesale market (Rungis), major renowned schools (École Polytechnique, HEC, ESSEC, INSEAD, etc.), world famous research laboratories (in Saclay or Évry), the largest sport stadium (Stade de France), and some ministries (namely the Ministry of Transportation) are located outside of the city of Paris.