Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire "New England" region. The city proper had a 2009 estimated population of 645,169, making it the twentieth largest in the country. It is also the anchor of a substantially larger metropolitan area called  "Greater Boston", home to 4.5 million people and the tenth-largest metropolitan area in the country. Greater Boston as a commuting region includes six Massachusetts counties:  "Essex", "Middlesex","Norfolk", "Suffolk", "Plymouth", "Worcester", northern "Bristol" County, all of "Rhode Island" and parts of "New Hampshire"; it is home to 7.6 million people, making it the fifth-largest Combined Statistical Area in the United States.

Sydney is a Canadian urban community in the province of Nova Scotia. It is situated on the east coast of Cape Breton Island and is administratively part of the Cape Breton Regional Municipality. Sydney was incorporated in 1904 and dissolved on August 1, 1995, when it was merged into the regional municipality. It is the largest urban centre on Cape Breton Island. Together with Sydney Mines, North Sydney, New Waterford and Glace Bay it forms the Industrial Cape Breton region. Sydney is located on east bank of the Sydney River where it discharges into South Arm of Sydney Harbour.

Halifax, legally known as the Halifax Regional Municipality (HRM), is the capital of the province of Nova Scotia, Canada. It is a major economic centre in Atlantic Canada with a large concentration of government services and private sector companies. Major employers and economic generators include the Department of National Defence, Dalhousie University,Saint Mary's University, the Halifax Shipyard, various levels of government, and the Port of Halifax. Agriculture, fishing, mining, forestry and natural gas extraction are major resource industries found in the rural areas of the municipality. Halifax was ranked as the fourth best place to live in Canada for 2012, placed first on a list of "large cities by quality of life" and placed second in a list of "large cities of the future''. Additionally, Halifax has consistently placed in the top 10 for business friendliness of North and South American cities. Waterfront warehouses known as the Historic Properties recall Halifax’s days as a trading hub for privateers, notably during the War of 1812.

Reykjavík is the capital and largest city of Iceland. It has a latitude of 64°08' N, making it the world's northernmost capital of a sovereign state, and is a popular tourist destination. It is the heart of Icelands's cultural, economic and governmental activity. The city itself is spread out, with sprawling suburbs. The city centre, however, is a very small area characterized by eclectic and colourful houses, with good shopping, dining, and drinking.

St. John's is the capital and largest city in Newfoundland and Labrador, Canada. St. John's was incorporated as a city in 1888, yet is considered by some to be the oldest English-founded city in North America. Situated on the eastern tip of the Avalon Peninsula on the island of Newfoundland, it is one of the world's top ten oceanside destinations. Its name has been attributed to the feast day of John the Baptist, when John Cabot was believed to have sailed into the harbour in 1497, and also to a Basque fishing town with the same name.

Rotterdam is the second-largest city in the Netherlands and the largest port in Europe. Starting as a dam on the Rotte river, Rotterdam has grown into a major international commercial centre. Its strategic location at the Rhine-Meuse-Scheldt delta on the North Sea and at the heart of a massive rail, road, air and inland waterway distribution system extending throughout Europe means that Rotterdam can rightly be called the gateway to Europe. Located in the Province of South Holland, Rotterdam is in the west of the Netherlands and at the south of the Randstad. The population of the city proper was 603,425 in March 2010. The population of the greater Rotterdam area, called "Rotterdam-Rijnmond" or just "Rijnmond", is around 1.3 million people. Rotterdam is one of Europe's most vibrant and multicultural cities.