Amsterdam is the capital city and most populous municipality of the Netherlands. Its status as the capital is mandated by the Constitution of the Netherlands, although it is not the seat of the government, which is The Hague. Amsterdam has a population of 851,373 within the city proper, 1,351,587 in the urban area] and 2,410,960 in the metropolitan area. The city is located in the province of North Holland in the west of the country but is not its capital, which is Haarlem. The metropolitan area comprises much of the northern part of the Randstad, one of the larger conurbations in Europe, with a population of approximately 8 million.

Berlin is the capital and largest city of Germany, by both area and population. With 3.7 million inhabitants, it has the highest population within its city limits of any city in the European Union. The city is also one of the states of Germany, being the third smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, and Brandenburg's capital Potsdam is nearby. The urban area of Berlin has a population of over 4.6 million and is therefore the most populous urban area in Germany.The Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's second-largest metropolitan region after the Rhine-Ruhr;region,as well as the fifth-biggest metropolitan region by GDP in the European Union.

The city of Szczecin, located in northwestern Poland on the Oder River near the Baltic Sea, offers a unique blend of maritime history, Prussian architecture, and modern cultural life. It is one of the country’s largest ports and a key hub for shipping and shipbuilding. The city center surprises visitors with its unusual layout, inspired by Parisian boulevards—with round squares and radial streets. Highlights along the Castle Route include the Pomeranian Dukes’ Castle, the Cathedral of St. James, and the scenic riverside promenade.

Szczecin is also known for its greenery—featuring numerous parks such as Jasne Błonia and an extensive network of tree-lined avenues, making it one of the greenest cities in Poland. Tourists are drawn to river cruises on the Oder, the Museum of Contemporary Art, and the futuristic Philharmonic building, recognized as a symbol of Poland’s modern architecture. Thanks to its proximity to the German border and excellent transport links, Szczecin often serves as a starting point for exploring Western Pomerania and beyond.

Quiet streets lined with half-timbered houses make Ronne (Rønne) a cozy corner on the Danish island of Bornholm, where every step is filled with the scent of the sea and fresh pastries from local bakeries. The town is known for its ceramics and glass workshops, as well as the cozy atmosphere of its fishing port, where you can taste freshly smoked herring while watching ships slowly enter the harbor. Here, time seems to slow down, allowing you to enjoy strolls through the old town with its cobblestone streets and picturesque houses that have preserved their 18th-century charm.

In Ronne, travelers will find a peaceful retreat with a touch of Danish coziness and the creative spirit of the island. The Bornholm Museum offers insights into the island's history and maritime traditions, while walks along the coast reveal rocky shores and clean beaches inviting relaxation year-round. This town is the perfect place for those who wish to experience authentic Denmark, breathe in the sea air, and discover the warm hospitality of Bornholm.

Klaipėda is a city in Lithuania on the Baltic Sea coast. It is the third largest city in Lithuania and the capital of Klaipėda County.

The city has a complex recorded history, partially due to the combined regional importance of the usually ice-free Port of Klaipėda at the mouth of the Akmena-Danė River. It was controlled by successive German states until the 1919 Treaty of Versailles. As a result of the 1923 Klaipėda Revolt it was added to Lithuania and has remained with Lithuania to this day, except for the period between 1939 and 1945 when it returned to Germany following the 1939 German ultimatum to Lithuania and the German–Soviet Union Molotov–Ribbentrop Pact.

The population has shrunk from the city to suburbs and the hinterland. The city had a population of 207,100 in 1992 to 157,350 in 2014 but the city is growing again. Popular seaside resorts found close to Klaipėda are Nida to the south on the Curonian Spit and Palanga to the north.

Riga is the capital and largest city of Latvia. With 637,827 inhabitants (2018), it is also the largest city in the three Baltic states, home to one third of Latvia's population and one tenth of the three Baltic states' combined population. The city lies on the Gulf of Riga, at the mouth of the Daugava. Riga's territory covers 307.17 km2 (118.60 sq mi) and lies 1–10 m (3 ft 3 in–32 ft 10 in) above sea level, on a flat and sandy plain.

Riga was founded in 1201 and is a former Hanseatic League member. Riga's historical centre is a UNESCO World Heritage Site, noted for its Art Nouveau/Jugendstil architecture and 19th century wooden architecture. Riga was the European Capital of Culture during 2014, along with Umeå in Sweden. Riga hosted the 2006 NATO Summit, the Eurovision Song Contest 2003, the 2006 IIHF Men's World Ice Hockey Championships and the 2013 World Women's Curling Championship. It is home to the European Union's office of European Regulators for Electronic Communications (BEREC).

In 2016, Riga received over 1.4 million visitors. It is served by Riga International Airport, the largest and busiest airport in the Baltic states. Riga is a member of Eurocities, the Union of the Baltic Cities (UBC) and Union of Capitals of the European Union (UCEU).

Kotka, located on the southern coast of Finland along the Gulf of Finland, offers a unique blend of maritime spirit, natural beauty, and industrial heritage. It is one of the country’s most important ports while still maintaining the charm of a green and cozy city. A key attraction is the Maritime Centre Vellamo, an interactive museum dedicated to Finnish naval history, shipbuilding, and coastal life.

Nature lovers will enjoy Sapokka Water Garden, known for its landscape architecture, fountains, and unique plants, especially vibrant during summer. Kotka is also a great base for sea excursions and fishing trips, with numerous nearby islands to explore. Thanks to its convenient location and variety of sights, Kotka is perfect for both day trips from Helsinki and longer, relaxing coastal stays.

Tallinn is the capital and largest city of Estonia. It is on the northern coast of the country, on the shore of the Gulf of Finland in Harju County. From the 13th century until 1918 (and briefly during the Nazi occupation of Estonia from 1941 to 1944), the city was known as Reval. Tallinn occupies an area of 159.2 km2 (61.5 sq mi) and has a population of 453,033.

Tallinn, first mentioned in 1219, received city rights in 1248, but the earliest human settlements date back 5,000 years. The initial claim over the land was laid by the Danes in 1219, after a successful raid of Lindanise led by Valdemar II of Denmark, followed by a period of alternating Scandinavian and German rule. Due to its strategic location, the city became a major trade hub, especially from the 14th to the 16th century, when it grew in importance as part of the Hanseatic League.

Stockholm is the capital of Sweden and the most populous urban area in the Nordic countries; 960,031 people live in the municipality, approximately 1.5 million in the urban area, and 2.3 million in the metropolitan area. The city stretches across fourteen islands where Lake Mälaren flows into the Baltic Sea. Just outside the city and along the coast is the island chain of the Stockholm archipelago. The area has been settled since the Stone Age, in the 6th millennium BC, and was founded as a city in 1252 by Swedish statesman Birger Jarl. It is also the capital of Stockholm County.

Stockholm is the cultural, media, political, and economic centre of Sweden. The Stockholm region alone accounts for over a third of the country's GDP, and is among the top 10 regions in Europe by GDP per capita. It is an important global city, and the main centre for corporate headquarters in the Nordic region. The city is home to some of Europe's top ranking universities, such as the Stockholm School of Economics, Karolinska Institute and Royal Institute of Technology (KTH). It hosts the annual Nobel Prize ceremonies and banquet at the Stockholm Concert Hall and Stockholm City Hall. One of the city's most prized museums, the Vasa Museum, is the most visited non-art museum in Scandinavia. The Stockholm metro, opened in 1950, is well known for the decor of its stations; it has been called the longest art gallery in the world. Sweden's national football arena is located north of the city centre, in Solna. Ericsson Globe, the national indoor arena, is in the southern part of the city. The city was the host of the 1912 Summer Olympics, and hosted the equestrian portion of the 1956 Summer Olympicsotherwise held in Melbourne, Victoria, Australia.

Stockholm is the seat of the Swedish government and most of its agencies, including the highest courts in the judiciary, and the official residencies of the Swedish monarch and the Prime Minister. The government has its seat in the Rosenbad building, the Riksdag (Swedish parliament) is seated in the Parliament House, and the Prime Minister's residence is adjacent at Sager House. Stockholm Palace is the official residence and principal workplace of the Swedish monarch, while Drottningholm Palace, a World Heritage Site on the outskirts of Stockholm, serves as the Royal Family's private residence.