Roman Catholicism is, by far, the most popular religion in the country, with four in five Spaniards (80%) self-identifying as Catholics. The next group (one in eight, or 12%) is represented by atheists or agnostics. Minority religions account for one in seventy (1.4%) of all Spaniards.
Mainland Spain is dominated by high plateaus and mountain ranges such as the Pyrenees or the Sierra Nevada. Running from these heights are several major rivers such as the Tajo, the Ebro, the Duero, the Guadiana and the Guadalquivir. Alluvial plains are found along the coast, the largest of which is that of the Guadalquivir in Andalusia, in the east there are alluvial plains with medium rivers like Segura, Júcar and Turia. Spain is bound to the east by Mediterranean Sea (containing the Balearic Islands), to the north by the Bay of Biscay and to its west by the Atlantic Ocean, where the Canary Islands off the African coast are found.
The dry weather of Spain resulted in the importance of water fountains in Spanish urban design. In addition, ceramics figure prominently in architecture throughout Spain, especially in the tile roofs and the use of decorative tiles known as azulejos.
Spain was part of the Roman Empire and many areas of Spain retain significant Roman architectural remnants. The Roman aqueduct at Segovia is still in use as of 2004; Mérida, now the Extermaduran capital but once the capital of the Roman province of Lusitania, retains over 5 miles of its Roman aqueduct, Roman bridge over the River Guadiana, an arch of Trajan, and significant remnants of a Roman forum, amphitheatre, and a temple popularly accounted to have been dedicated to Diana (goddess). Another Roman bridge crosses the Tagus River at Alcántara. Lesser Roman ruins can be found in the heart of Barcelona.
Spanish cuisine is made of very different kinds of dishes due to the differences in geography, culture and climate. It is heavily influenced by the variety of seafood available from the waters that surround the country. As Spain has had a history with many different cultural influences, the richness and variety of its cuisine is overwhelming, but all these ingredients have made up a unique cuisine with thousands of recipes and flavours. Much influence on Spanish cuisine has come from the Jewish and Moorish traditions. The Moors were a strong influence in Spain for many centuries and their food is still eaten in Spain today.
The Romans arrived in the Iberian peninsula during the Second Punic war in the 2nd century B.C., and annexed it under Augustus after two centuries of war with the Celtic and Iberian tribes and the Phoenician, Greek and Carthaginian colonies becoming the province of Hispania. Some of Spain's present languages, religion, and laws originate from this Roman period.
Until 1714, Spain was a loose confederation of kingdoms and statelets, under the same king, until King Philip V removed the autonomous status of the Aragonese crown. Moreover, the creation of a unified state in the 19th and 20th centuries has lead to the present situation, apparently simple, but sometimes extremely confusing. During the Second Spanish Republic (1931-1936), the Basque and Catalan were given limited self-government, which was lost after the Spanish Civil War (1936-1939) and restored in 1978 during the transition to democracy.
Philip V, the first Bourbon king, of French origin, signed the Decreto de Nueva Planta in 1715, a new law that revoked most of the historical rights and privileges of the different kingdoms that conformed the Spanish Crown, unifying them under the laws of Castile, where the Cortes had been more receptive to the royal wish. Spain became culturally and politically a follower of France. The rule of the Spanish Bourbons continued under Ferdinand VI and Charles III. His son Carlos IV was truly incompetent (some say mentally handicapped), and under his reign Spain fell to the armies of Napoleon.
While the siesta — an hours-long mid-afternoon break from work — is generally in decline, the typical rhythm of the day in Spain remains relatively distinct from the European norm. Many shops and some museums (though relatively few other businesses) still split their hours into two distinct periods of opening with a two or three hour break in the middle; a paseo (stroll) in the early evening remains a common custom in many smaller cities and to some extent even in the larger ones; the dinner hour is the latest in Europe, typically about 10 p.m.; nightlife begins accordingly late, with many dance clubs (even in relatively small cities) opening at midnight and staying open until dawn; in Madrid in the summer there is nothing unusual about a live musical performance being scheduled for one or two o'clock in the morning.
Contemporary Madrid came into its own after the death of the Fascist dictator Franco. Years of the Franco regime left Madrid and much the country in economic shambles due to isolation. With his death, Madrid and Spain as a whole began to re-assert itself on the international stage. Within Spain, reaction against the dictatorial bureaucracy centered in Madrid and a history of centralism that pre-dated Franco by centuries has resulted in the successful modern movement towards increased autonomy for the regions of Spain, considered as European regions, under the umbrella of Spain.
A revived movement for the Christian unification of Spain was capitalized on by the "Catholic monarchs" (Reyes Católicos in Spanish) Isabel I of Castilla and Fernando II of Aragón in order to justify their invasion of Granada, the expulsion of the Jews and the forceful conversion of the Moors. In the 15th century, the Kingdoms of Castile and Aragon were united under Isabel and Fernando. These two able rulers ruled jointly and worked to consolidate the power of the monarchy at the expense of the nobility. During their reign, the castles of many nobles (symbols of aristocratic independence from the monarchy) were demolished, and a system of regular taxation was established. Fernando and Isabel established the basis for the unification of Spain religiously as well as politically and economically.