Query: Barcelona is the capitol city of New Jersey.

Relevant passages:
Barcelona <=SEP=> Barcelona ( -LSB- bɑrsəˈloʊnə -RSB- , -LSB- bəɾsəˈlonə -RSB- , -LSB- barθeˈlona -RSB- ) is the capital city of the autonomous community of Catalonia in the Kingdom of Spain , as well as the country 's second most populous municipality , with a population of 1.6 million within city limits . Its urban area extends beyond the administrative city limits with a population of around 4.7 million people , being the sixth-most populous urban area in the European Union after Paris , London , Madrid , the Ruhr area and Milan . It is the largest metropolis on the Mediterranean Sea , located on the coast between the mouths of the rivers Llobregat and Besòs , and bounded to the west by the Serra de Collserola mountain range , the tallest peak of which is 512 m high .   Founded as a Roman city , in the Middle Ages Barcelona became the capital of the County of Barcelona . After merging with the Kingdom of Aragon , Barcelona continued to be an important city in the Crown of Aragon as an economic and administrative centre of this Crown and the capital of the Principality of Catalonia . Barcelona has a rich cultural heritage and is today an important cultural centre and a major tourist destination . Particularly renowned are the architectural works of Antoni Gaudí and Lluís Domènech i Montaner , which have been designated UNESCO World Heritage Sites . The headquarters of the Union for the Mediterranean is located in Barcelona . The city is known for hosting the 1992 Summer Olympics as well as world-class conferences and expositions and also many international sport tournaments .   Barcelona is one of the world 's leading tourist , economic , trade fair and cultural centres , and its influence in commerce , education , entertainment , media , fashion , science , and the arts all contribute to its status as one of the world 's major global cities . It is a major cultural and economic centre in southwestern Europe , 24th in the world ( before Zürich , after Frankfurt ) and a financial centre . In 2008 it was the fourth most economically powerful city by GDP in the European Union and 35th in the world with GDP amounting to $ 177 billion . In 2012 Barcelona had a GDP of $ 170 billion ; it is leading Spain in both employment rate and GDP per capita change . In 2009 the city was ranked Europe 's third and one of the world 's most successful as a city brand . In the same year the city was ranked Europe 's fourth best city for business and fastest improving European city , with growth improved by 17 % per year , and the city has been experiencing strong and renewed growth for the past three years . Since 2011 Barcelona has been a leading smart city in Europe . Barcelona is a transport hub , with the Port of Barcelona being one of Europe 's principal seaports and busiest European passenger port , an international airport , Barcelona -- El Prat Airport , which handles over 40 million passengers per year , an extensive motorway network , and a high-speed rail line with a link to France and the rest of Europe .

Trenton, New Jersey <=SEP=> Trenton is the capital city of the U.S. state of New Jersey and the county seat of Mercer County . It was briefly the capital of the United States . The city 's metropolitan area is grouped with the New York metropolitan area by the United States Census Bureau , but directly borders the Philadelphia metropolitan area and is part of the Federal Communications Commission 's Philadelphia Designated Market Area . As of the 2010 United States Census , Trenton had a population of 84,913 , making it the state 's 10th-largest municipality . The Census Bureau estimated that the city 's population was 84,034 in 2014 .   Trenton dates back at least to June 3 , 1719 , when mention was made of a constable being appointed for Trenton , while the area was still part of Hunterdon County . Boundaries were recorded for Trenton Township as of March 2 , 1720 , a courthouse and jail were constructed in Trenton around 1720 and the Freeholders of Hunterdon County met annually in Trenton . Trenton became New Jersey 's capital as of November 25 , 1790 , and the City of Trenton was formed within Trenton Township on November 13 , 1792 . Trenton Township was incorporated as one of New Jersey 's initial group of 104 townships by an act of the New Jersey Legislature on February 21 , 1798 . On February 22 , 1834 , portions of Trenton Township were taken to form Ewing Township . The remaining portion of Trenton Township was absorbed by the City of Trenton on April 10 , 1837 . A series of annexations took place over a 50-year period , with the city absorbing South Trenton borough ( April 14 , 1851 ) , portions of Nottingham Township ( April 14 , 1856 ) , both the Borough of Chambersburg Township and Millham Township ( both on March 30 , 1888 ) , as well as Wilbur Borough ( February 28 , 1898 ) . Portions of Ewing Township and Hamilton Township were annexed to Trenton on March 23 , 1900 .