Lisbon is the capital and the largest city of Portugal, with an estimated population of 505,526 within its administrative limits in an area of 100.05 km2. Its urban area extends beyond the city's administrative limits with a population of around 2.8 million people, being the 11th-most populous urban area in the European Union. About 3 million people live in the Lisbon Metropolitan Area (which represents approximately 27% of the country's population). It is mainland Europe's westernmost capital city and the only one along the Atlantic coast. Lisbon lies in the western Iberian Peninsula on the Atlantic Ocean and the River Tagus. The westernmost areas of its metro area form the westernmost point of Continental Europe, which is known as Cabo da Roca, located in the Sintra Mountains.

Ponta Delgada is the largest municipality and economic capital of the Autonomous Region of the Azores in Portugal. It is located on São Miguel Island, the largest and most populous in the archipelago. The population in 2011 was 68,809, in an area of 232.99 square kilometres (89.96 square miles). There are 17,629 residents in the three central civil parishes that comprise the historical city: São Pedro, São Sebastião, and São José. Ponta Delgada became the region's administrative capital under the revised constitution of 1976; the judiciary and Catholic see remained in the historical capital of Angra do Heroísmo while the Legislative Assembly of the Azores was established in Horta.

Miami, officially the City of Miami, is the cultural, economic and financial center of South Florida. Miami is the seat of Miami-Dade County, the most populous county in Florida. The city covers an area of about 56.6 square miles (147 km2), between the Everglades to the west and Biscayne Bay on the east; with a 2017 estimated population of 463,347, Miami is the sixth most densely populated major city in the United States. The Miami metropolitan area is home to 6.1 million people and the seventh-largest metropolitan area in the nation. Miami's metro area is the second-most populous metropolis in the southeastern United States and fourth-largest urban area in the U.S.

Miami is a major center, and a leader in finance, commerce, culture, media, entertainment, the arts, and international trade. The Miami Metropolitan Area is by far the largest urban economy in Florida and the 12th largest in the United States with a GDP of $344.9 billion as of 2017. In 2012, Miami was classified as an "Alpha−" level world city in the World Cities Study Group's inventory. In 2010, Miami ranked seventh in the United States and 33rd among global cities in terms of business activity, human capital, information exchange, cultural experience, and political engagement. In 2008, Forbes magazine ranked Miami "America's Cleanest City", for its year-round good air quality, vast green spaces, clean drinking water, clean streets, and citywide recycling programs. According to a 2009 UBS study of 73 world cities, Miami was ranked as the richest city in the United States, and the world's seventh-richest city in terms of purchasing power. Miami is nicknamed the "Capital of Latin America" and is the largest city with a Cuban-American plurality.

Greater Downtown Miami has one of the largest concentrations of international banks in the United States, and is home to many large national and international companies. The Civic Center is a major center for hospitals, research institutes, medical centers, and biotechnology industries. For more than two decades, the Port of Miami, known as the "Cruise Capital of the World", has been the number one cruise passenger port in the world. It accommodates some of the world's largest cruise ships and operations, and is the busiest port in both passenger traffic and cruise lines. Metropolitan Miami is also a major tourism hub in the southeastern U.S. for international visitors, ranking number two in the country after New York City.

Galveston is a coastal resort city and port off the southeast coast on Galveston Islandand Pelican Island in the American State of Texas. The community of 209.3 square miles (542 km2), with an estimated population of 50,180 in 2015, is the county seat of surrounding Galveston County and second-largest municipality in the county. It is also within the Houston–The Woodlands–Sugar Land metropolitan area at its southern end on the northwestern coast of the Gulf of Mexico.

Galveston, or Galvez' town, was named after the Spanish military and political leader in the 18th century: Bernardo de Gálvez y Madrid, Count of Gálvez (1746-1786), who was born in Macharaviaya, Málaga, in the Kingdom of Spain. Galveston's first European settlements on the Galveston Island were built around 1816 by French pirate Louis-Michel Aury to help the fledgling Republic of Mexico fight for independence from Spain, along with other colonies in the Western Hemisphere of the Americas in Central and South America in the 1810s and 1820s. The Port of Galveston was established in 1825 by the Congress of Mexico following its independence from Spain. The city was the main port for the fledging Texas Navy during the Texas Revolution of 1836, and later served temporarily as the new national capital of the now independent Republic of Texas.

During the 19th century, Galveston became a major U.S. commercial center and one of the largest ports in the United States. It was for a time, Texas' largest city, known as the "Queen City of the Gulf". It was devastated by the unexpected surprising Galveston Hurricane of 1900, whose effects included massive flooding and a storm surge which almost completely destroyed and wiped out the town. The natural disaster on the exposed barrier island is still ranked today as the deadliest in United States history, with an estimated death toll of 6,000 to 12,000 people. The city subsequently reemerged during the Prohibition era of 1919-1933 as a leading tourist hub and a center of illegal gambling nicknamed the Free State of Galveston until this era ended in the 1950s with subsequent other economic and social development.

Much of Galveston's economy is centered in the tourism, health care, shipping, and financial industries. The 84-acre (34 ha) University of Texas Medical Branch campus with an enrollment of more than 2,500 students is a major economic force of the city. Galveston is home to six historic districts containing one of the largest and historically significant collections of 19th-century buildings in the U.S., with over 60 structures listed on the National Register of Historic Places, maintained by the National Park Service in the United States Department of the Interior.