Itinerary for 3 day trip to Spain

Here's an ideal itinerary for 3 days in Spain that is safe, budget-friendly, and transportation-friendly:

Day 1:

Start your day with a visit to the famous . This park is a UNESCO World Heritage Site and is known for its colorful mosaics and stunning views of the city.
After exploring the park, head to the Gothic Quarter, one of the oldest neighborhoods in Barcelona. Here, you can wander through narrow streets and admire the beautiful architecture of the area.
For lunch, try some traditional Spanish tapas at a local restaurant. Tapas are small plates of food that are perfect for sharing and trying a variety of dishes.
In the afternoon, visit the famous Sagrada Familia, a stunning basilica designed by the famous architect Antoni Gaudí. This is one of the most popular tourist attractions in Barcelona, so be sure to book your tickets in advance.
End your day with a stroll along the beachfront promenade, where you can enjoy the beautiful views of the Mediterranean Sea.

Start your day with a visit to the , the official residence of the Spanish royal family. This palace is a stunning example of Baroque architecture and is filled with beautiful artwork and furnishings.
After exploring the palace, head to the nearby Prado Museum, one of the most important art museums in the world. Here, you can see works by famous Spanish artists such as Velázquez, Goya, and El Greco.
For lunch, try some traditional Spanish paella at a local restaurant. Paella is a rice dish that is typically made with seafood, chicken, or vegetables.
In the afternoon, visit the Retiro Park, a beautiful park in the heart of Madrid. Here, you can rent a rowboat on the lake, visit the Crystal Palace, or simply relax and enjoy the beautiful surroundings.
End your day with a visit to the Puerta del Sol, one of the most famous squares in Madrid. Here, you can see the famous clock tower and the statue of the bear and the strawberry tree, which is the symbol of Madrid.

Start your day with a visit to the Alhambra, a stunning palace and fortress complex in Granada. This is one of the most popular tourist attractions in Spain, so be sure to book your tickets in advance.
After exploring the Alhambra, head to the nearby Albayzín neighborhood, a beautiful area filled with narrow streets and stunning views of the Alhambra.
For lunch, try some traditional Spanish gazpacho at a local restaurant. Gazpacho is a cold soup made with tomatoes, cucumbers, peppers, and bread.
In the afternoon, visit the , a stunning Gothic cathedral that is home to the Royal Chapel, where the Catholic Monarchs are buried.
End your day with a visit to the Mirador de San Nicolás, a beautiful viewpoint that offers stunning views of the Alhambra and the city of Granada.

I hope this itinerary helps you plan your trip to Spain! Let me know if you have any other questions or if there's anything else I can help you with.