Barcelona is a city on the coast of northeastern Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second most populous municipality of Spain. It had a population of 1.6 million in 2018.

Dublin is the capital and largest city of Ireland Situated on a bay on the east coast, at the mouth of the River Liffey, it is in the province of Leinster and the Eastern and Midland Region. It is bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 census, it had an urban area population of 1,173,179.

Lisbon is the capital and the largest city of Portugal, with an estimated population of 544,851 within its administrative limits in an area of 100.05 km2. Lisbon's urban area extends beyond the city's administrative limits with a population of around 2.7 million people, being the 11th-most populous urban area in the European Union.

Kyiv or Kiev is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe.

Bern is the de facto capital of Switzerland, referred to as the "federal city". With a population of about 144,000 (as of 2020), Bern is the fourth-most populous city in Switzerland. Bern is diverse and unique. Whether you’re looking for nature, cultural activities, or great food, this is the place for you.

Rome is the capital city of Italy. It is also the capital of the Lazio region, the centre of the Metropolitan City of Rome, and a special comune named Comune di Roma Capitale. With 2,860,009 residents in 1,285 km2 (496.1 sq mi), Rome is the country's most populated comune and the third most populous city in the European Union by population within city limits.

Russia is a transcontinental country spanning Eastern Europe and Northern Asia. It is the ninth-most populous country in the world and the most populous country in Europe, with a population of 146 million. The country's capital and largest city is Moscow, the largest city entirely within Europe. Saint Petersburg is Russia's cultural centre and second-largest city.

Moscow is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million residents within the city limits, over 17 million residents in the urban area, and over 20 million residents in the metropolitan area.

Nicosia is the largest city, capital, and seat of government of Cyprus. It is located near the centre of the Mesaoria plain, on the banks of the River Pedieos. It had a populatiom of 116,000 in 2016.

North Macedonia is a landlocked country in Southeast Europe. Skopje, the capital and largest city, is home to a quarter of the country's 2.08 million population. It has an area of 25,713 km2 (9,928 sq mi).