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. 

The Dominican Republic is a sovereign state on the island of Hispaniola, in the Greater Antilles archipelago in the Caribbean Caribbean region. Though known for its wonderful beaches, all-inclusive resorts and golfing, it has a varied terrain comprising rainforest, savannah and highlands, including Pico Duarte, the Caribbean’s tallest mountain. For the adventure tourist this Caribbean country offers a diverse countryside comprising tropical rainforests, arid desert expanses, alpine ranges and steamy mangrove swamps. It's a playground for trekkers, mountain bike enthusiasts and water-sport junkies!

Miami is a major city located on the Atlantic coast in southeastern Florida and the county seat of Miami-Dade County, the most populous county in Florida and the eighth-most populous county in the United States with a population of 2,500,625. The 42nd largest city in the United States, with a population of 433,136, it is the principal, central, and most populous city of the South {Florida} metropolitan area, the most populous metropolis in the Southeastern United States. According to the US Census Bureau, Miami's metro area is the seventh most populous in the United States, with an estimated population of 5,547,051 in 2009. 

Gustavia, St Barts' red-roofed capital, is a small harbor town lined with chic boutiques, duty free shops, gourmet restaurants, and galleries. It is the main town of the island of Saint Barthélemy (also known as St. Barts). It was named after King Gustav III of Sweden. St. Barts was a French possession originally, and the area was called Carenage after the shelter it provided to damaged ships. Gustavia was founded after Sweden bought the island from France in 1785. The island was sold back to France in 1878.  For beautiful sightseeing views, visit Fort Gustav (the most important fort during the Swedish period), or head to the top of the 29 m hill for vistas of Shell Beach amid the few remaining stonewalls of Fort Karl!

Nassau County is a suburban county on Long Island in the U.S. state of New York. At the 2010 census, the county's population was 1,339,532, estimated to have increased to 1,361,350 in 2015. The county seat is located in the Village of Garden City, within the boundaries of the Mineola 11501 zip code. Located immediately east of New York City, within the New York-Newark-Bridgeport, the county is one of the four counties that occupy Long Island, together with Suffolk County to its immediate east and Queens and Kings counties to the west, which correspond, respectively, to the New York City boroughs of Queens and Brooklyn. Two cities, three towns, 64 incorporated villages, and more than 60 unincorporated hamlets are located within the county. There are 56 public school districts within the county. Post office districts and school districts use the same names as a city, hamlet, or village within them, but each sets the boundaries independently. In 2012, Forbes magazine, in an article based on the U.S. Census Bureau's American Community Survey, reported that Nassau County was one of the highest income counties in the United States and the most affluent in the state of New York, comprising four of the nation's top ten towns by median income. It also ranks as the most expensive county in America. Nassau County also has a designated police department, fire commission, and elected executive and legislative bodies.