Cluj-Napoca is a city in northwestern Romania and the capital of Cluj County. It is located in the historical region of Transylvania. The city was the capital of the Dacian kingdom under the rule of Burebista. After the Roman conquest of Dacia, it became the capital of the province of Dacia Apulensis. During the Middle Ages, Cluj-Napoca was part of the Kingdom of Hungary. It was first mentioned in documents in 1213 as a Hungarian royal town. The city continued to prosper and grew in size and importance. It was the center of the region's cultural and economic life. The city was the site of two important synods, in 1285 and 1409. Cluj-Napoca was also the birthplace of the Hungarian revolutionary leader Lajos Kossuth. In 1848, it was the site of the first Hungarian government. After World War II, Cluj-Napoca became the capital of the Romanian province of Transylvania.

Barcelona is a city located in the northeast of Spain. It is the capital of the autonomous region of Catalonia and the second most populous city in Spain, with a population of 1.6 million in the city proper and about 5.5 million in the metropolitan area. Barcelona is the 12th most populous city in the European Union. The origins of Barcelona date back to the Roman period, when it was known as Barcino. In the Middle Ages, it was a prosperous merchant city and a major cultural center. In 1992, Barcelona hosted the Summer Olympics.