Catalonia, Galicia, the Basque Country and Valencia, respectively. Two hundred cigarettes, or 50 cigars, or 250 grams of tobacco are also permitted as well as one bottle of wine and one bottle of liquor per person. The national currency of Spain is the Peseta. Any amount exceeding 1,000,000 pesetas must be declared on arrival. For an updated exchange rate , check with newspapers or banks.
Exchange rates vary from bank to bank both in the U.S. and Spain.
In general you will be able to get the most favorable rates at any of the exchange facilities at any airport in Spain. Traveler's checks in U.S. dollars should be exchanged in banks or exchange offices as there are not very widely accepted. Banks in Spain are usally open Monday to Friday from 9 am to 2 pm. Traveler's checks in Spanish pesetas can be purchased in the U.S. from specialized banks or in any major banks in Spain. Major credit cards are accepted throughout the country in most restaurants, hotels, gas stations and toll booths.