- Barcelona is the capital of the autonomous region of Catalonia in Spain. - It is the second most populous municipality in Spain, after Madrid, with a population of 1,615,908 in 2009. - The city is located on the northeast coast of the Iberian Peninsula, on the Mediterranean Sea.

What makes Barcelona unique is its location on the Mediterranean Sea and its history as a cultural center.

The most popular places of interest in Barcelona are: La Rambla, La Sagrada Familia, Park Guell, Camp Nou and the Barcelona Harbor.

The best attraction in Barcelona is the Sagrada Família.

Bucharest is the capital of Romania and its largest city, with a population of over 2 million. It is a cultural, economic, and political center of the country. Bucharest is home to the Romanian Parliament, the National Museum of Art, and the National Opera.

What makes Bucharest unique is that it is the only city in Romania that is situated on the banks of the Dâmbovița River.

The most popular attractions in Bucharest are the Palace of Parliament, the Romanian Athenaeum, and the National Museum of Art.

The best attraction in Bucharest is the Palace of the Parliament.