Gothic Quarter, Plaza Reial, and Sagrada Familia
Begin at Plaza Reial, a square in the Barri Gòtic of Barcelona, Catalonia, Spain. It is close to La Rambla, a street in central Barcelona, and is a popular tourist attraction, especially at night.
Walk through the Barri Gòtic, the Gothic Quarter, one of the oldest parts of the city, which hosts the remains of the Roman city wall.
Continue to the Palau de la Música Catalana, a concert hall in Barcelona with unique architecture that has been declared a UNESCO World Heritage Site.
Visit the Sagrada Familia, the largest unfinished Roman Catholic church in the world.