Money
Spain's official currency is the Euro (EUR). One Euro is divided into 100 cents. Money can be exchanged at bureaux de change and major hotels, but banks give the best rates. All major credit cards and travellers cheques are widely accepted at most hotels, restaurants, and shops. ATMs are widespread and are generally the cheapest and most convenient method of obtaining money.
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Passports / Visas
The borderless region known as the Schengen area includes the following countries: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Lithuania, Luxembourg, Malta, The Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain and Sweden. All these countries issue a standard Schengen visa that has a multiple entry option that allows the holder to travel freely within the borders of all. Non-EU nationals must hold a return or onward ticket, all necessary documents for onward travel and sufficient funds.
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Communications
The international access code for Spain is +34. The outgoing code is 00 followed by the relevant country code (e.g. 0044 for the United Kingdom). City/area codes are in use, e.g. (0)93 for Barcelona and (0)91 for Madrid. Pay phones are either blue or green and accept either coins or phone cards, which are sold at post offices, tobacco shops and newsagents. Mobile phone operators provide thorough GSM 900/1800 coverage throughout the country and the Balearic and Canary Islands. Email and Internet access is available at Internet cafes in most towns and resorts.
Source: www.wordtravels.com