Messina is a harbor city in northeast Sicily, Italy. It is the capital of the Italian Metropolitan City of Messina, and has close ties with Reggio Calabria. The city's main resources are its seaports (commercial and military shipyards), cruise tourism, commerce, and agriculture (wine production and cultivating lemons, oranges, mandarin oranges, and olives). The city has been a Roman Catholic Archdiocese and Archimandrite seat since 1548 and is home to a locally important international fair. The city has the University of Messina, founded in 1548 by Ignatius of Loyola. Messina has a light rail system, Tranvia di Messina, that was opened on 3 April 2003. This line is 7.7 kilometres (4.8 mi) and links the city's central railway station with the city centre and harbour. The city is home to a significant Greek-speaking minority, rooted in its history and officially recognised.

Marseille, known in antiquity as Massalia, is the second largest city in France, after Paris, with a population of 852,395 within its administrative limits on a land area of 240.62 km2. The urban area of Marseille extends beyond the city limits with a population of over 1,420,000 on an area of 1,204 km2. 1,530,000 or 1,601,095 people live in the Marseille metropolitan area. Located on the southeast coast of France on the Mediterranean Sea, Marseille is France's largest commercial port and largest French city on the Mediterranean coast. Marseille is the capital of the Provence-Alpes-Côte d'Azur region, as well as the capital of the Bouches-du-Rhône department. Its inhabitants are called Marseillais.

Barcelona – Spain's enchanting capital, second largest and most populous city. It is a huge city that vibrates with life, and there’s certainly not another city in the country to touch it for its sheer style, looks or energy. It is one of the world's leading tourist, economic, trade fair and cultural centers, 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. Barcelona is home to masterpieces of many great architects – the most famous of which is Antoni Gaudí.