The best time to visit Spain is during the spring (April to May) or fall (September to October) when the weather is mild and crowds are smaller. Summer (June to August) is peak tourist season with hot temperatures and higher prices, while winter (November to March) can be chilly in many parts of the country, except for the southern coast and islands which remain relatively warm year-round.

If you're a citizen of the European Union, Switzerland, Norway, Iceland, or Liechtenstein, you don't need a visa to enter Spain. For most other countries, including the United States, Canada, and Australia, you can stay in Spain for up to 90 days within a 180-day period without a visa. However, always check the latest entry requirements before traveling, as regulations may change.

Spain offers numerous attractions, but some must-visit sites include the Sagrada Familia and Park Güell in Barcelona, the Alhambra in Granada, the Prado Museum in Madrid, the City of Arts and Sciences in Valencia, the Mezquita in Córdoba, and the Plaza de España in Seville. Don't miss experiencing Spain's beautiful beaches, trying authentic tapas, and attending a flamenco show for a well-rounded Spanish experience.

Spain is generally a safe country for tourists, with low crime rates compared to many other European destinations. However, as with any travel, it's important to stay vigilant, especially in crowded tourist areas where pickpocketing can occur. Take normal precautions such as watching your belongings, avoiding poorly lit areas at night, and being aware of your surroundings to ensure a safe and enjoyable trip.

The currency in Spain is the Euro (€). Credit cards are widely accepted in most establishments, especially Visa and Mastercard. However, it's a good idea to carry some cash for smaller purchases or in case you visit more rural areas where card payments might not be available. ATMs are readily available in cities and towns for cash withdrawals.