Barcelona's most colorful district by a margin of at least several rainbows and one kaleidoscope. Here you'll find many of Barcelona's best bars, hippest restaurants, contemporary culture and a never ending parade of weird and wonderful characters.

The Gothic Quarter is the centre of the old city of Barcelona. It stretches from La Rambla to Via Laietana, and from the Mediterranean seafront to Ronda de Sant Pere.

The Basílica i Temple Expiatori de la Sagrada Família, commonly known as the Sagrada Família, is a large Roman Catholic church in Barcelona, Catalonia, Spain, designed by Catalan architect Antoni Gaudí (1852–1926). Although incomplete, the church is a UNESCO World Heritage Site.

Barcelona Cathedral (also known as La Seu) is a celebrated example of Catalan Gothic architecture dating from the 14th century. Its graceful spires can be seen from throughout the Barri Gòtic (Gothic quarter) of Barcelona. La Seu is officially known as Catedral de la Santa Creu i Santa Eulalia in Catalan and is dedicated to Eulalia of Barcelona, co-patron saint of Barcelona.

The Eixample is a district of Barcelona between the old city (Ciutat Vella) and what were once surrounding small towns (Sants, Gràcia, Sant Andreu etc.), constructed in the 19th and early 20th centuries. Eixample attracts the tourist with its fabulous sights and with unique atmosphere.

Casa Batlló is a building restored by Antoni Gaudí and Josep Maria Jujol, built in the year 1877 and remodelled in the years 1904–1906; located at 43, Passeig de Gràcia (passeig is Catalan for promenade or avenue), part of the Illa de la Discòrdia (the "Block of Discord") in the Eixample district of Barcelona, Spain. Gaudí's assistants Domènec Sugrañes i Gras, Josep Canaleta y Joan Rubió also contributed to the renovation project.

If you are visiting Barcelona and have any interest in the art world at all, you cannot deny yourself a visit to the Picasso Museum. Featuring one of the most extensive collections of the famous 20th century Spanish artist, Pablo Picasso, this museum is housed in five interconnected medieval palaces in the Barri Gothic, the centre of the old city of Barcelona.

Park Güell is a garden complex with architectural elements situated on the hill of el Carmel in the Gràcia district of Barcelona, Catalonia, Spain. It was designed by the Catalan architect Antoni Gaudí and built in the years 1900 to 1914. It is part of the UNESCO World Heritage Site "Works of Antoni Gaudí".

Montjuïc Castle, built on a site giving an all-round command of the town, its harbour and approaches with the objective of subjecting the people of Barcelona to Spanish rule, was first built in 1640. 50 years later —between 1705 and 1714— it became a key site in the War of the Spanish Succession. Montjuïc Castle gained its current appearance in the middle of the 18th century.

Opened on February 9th 1908, the Palau de la Música Catalana is one of the most representative buildings of Catalan Modernist style.