San Juan, officially Municipio de la Ciudad Capital San Juan Bautista (Municipality of the Capital City, Saint John the Baptist), is the capital and most populous municipality in Puerto Rico, an unincorporated territory of the United States. As of the 2000 census, it has a population of 658,304 making it the 42nd-largest city under the jurisdiction of the United States. San Juan was founded by Spanish colonists in 1521, who called it Ciudad de Puerto Rico ("Rich Port City"). Puerto Rico's capital is the second oldest European-established city in the Americas, after Santo Domingo, in the Dominican Republic. Several historical buildings are located in San Juan; among the most notable are the city's former defensive forts, Fort San Felipe del Morro and Fort San Cristóbal, and La Fortaleza, the oldest executive mansion in continuous use in the Americas. 

Saint Thomas is an island in the Caribbean Sea and with the islands of Saint John, Saint Croix, and Water Island a county and constituent district of the United States Virgin Islands (USVI), an unincorporated territory of the United States. Located on the island is the territorial capital and port of Charlotte Amalie. As of the 2000 census, the population of Saint Thomas was 51,181 about 47% of the US Virgin Island total. The district has a land area of 31.24 square miles (80.9 km2).

Charleston is a city in the U.S. state of South Carolina and is the second largest city in the state. The city lies just south of the geographical midpoint of South Carolina's coastline and is located on Charleston Harbor, an inlet of the Atlantic Ocean formed by the confluence of the Ashley and Cooper Rivers, or, as is locally expressed, "where the Cooper and Ashley Rivers come together to form the Atlantic Ocean." Founded in 1670 as Charles Town in honor of King Charles II of England, Charleston adopted its present name in 1783, and is defined by its cobblestone streets, horse-drawn carriages and pastel antebellum houses, particularly in the elegant French Quarter and Battery districts. 

Sint Maarten (Dutch pronunciation: [sɪnt ˈmaːrtə(n)]) is an island country in the Caribbean. It is a constituent country of the Kingdom of the Netherlands. With a population of 33,609 on an area of 34 km2 (13 sq mi), it encompasses the southern 40% of the divided island of Saint Martin, while the northern 60% of the island constitutes the French overseas collectivity of Saint-Martin. Its capital is Philipsburg. Before 10 October 2010, Sint Maarten was known as the Island Territory of Sint Maarten (Dutch: Eilandgebied Sint Maarten), and was one of five island territories (eilandgebieden) that constituted the Netherlands Antilles.