Philadelphia (30th Street Station), Pennsylvania

Orlando, Florida

Philadelphia, known colloquially as Philly, is the largest city in the U.S. state and Commonwealth of Pennsylvania, and the sixth-most populous U.S. city, with a 2018 census-estimated population of 1,584,138. Since 1854, the city has had the same geographic boundaries as Philadelphia County, the most populous county in Pennsylvania and the urban core of the eighth-largest U.S. metropolitan statistical area, with over 6 million residents as of 2017. Philadelphia is also the economic and cultural anchor of the greater Delaware Valley, located along the lower Delaware and Schuylkill Rivers, within the Northeast megalopolis. The Delaware Valley's population of 7.2 million ranks it as the eighth-largest combined statistical area in the United States.William Penn, an English Quaker, founded the city in 1682 to serve as capital of the Pennsylvania Colony. Philadelphia played an instrumental role in the American Revolution as a meeting place for the Founding Fathers of the United States, who signed the Declaration of Independence in 1776 at the Second Continental Congress, and the Constitution at the Philadelphia Convention of 1787. Several other key events occurred in Philadelphia during the Revolutionary War including the First Continental Congress, the preservation of the Liberty Bell, the Battle of Germantown, and the Siege of Fort Mifflin. Philadelphia remained the nation's largest city until being overtaken by New York City in 1790; the city was also one of the nation's capitals during the revolution, serving as temporary U.S. capital while Washington, D.C. was under construction. In the 19th century, Philadelphia became a major industrial center and a railroad hub. The city grew from an influx of European immigrants, most of whom came from Ireland, Italy and Germany—the three largest reported ancestry groups in the city as of 2015. In the early 20th century, Philadelphia became a prime destination for African Americans during the Great Migration after the Civil War, as well as Puerto Ricans. The city's population doubled from one million to two million people between 1890 and 1950. The Philadelphia area's many universities and colleges make it a top study destination, as the city has evolved into an educational and economic hub. As of 2019, the Philadelphia metropolitan area is estimated to produce a gross metropolitan product (GMP) of $490 billion. Philadelphia is the center of economic activity in Pennsylvania and is home to five Fortune 1000 companies. The Philadelphia skyline is expanding, with a market of almost 81,900 commercial properties in 2016, including several nationally prominent skyscrapers. Philadelphia has more outdoor sculptures and murals than any other American city. Fairmount Park, when combined with the adjacent Wissahickon Valley Park in the same watershed, is one of the largest contiguous urban park areas in the United States. The city is known for its arts, culture, cuisine, and colonial history, attracting 42 million domestic tourists in 2016 who spent $6.8 billion, generating an estimated $11 billion in total economic impact in the city and surrounding four counties of Pennsylvania. Philadelphia has also emerged as a biotechnology hub.Philadelphia is the birthplace of the United States Marine Corps, and is also the home of many U.S. firsts, including the first library (1731), hospital (1751), medical school (1765), national capital (1774), stock exchange (1790), zoo (1874), and business school (1881). Philadelphia contains 67 National Historic Landmarks and the World Heritage Site of Independence Hall. The city became a member of the Organization of World Heritage Cities in 2015, as the first World Heritage City in the United States. Although Philadelphia is rapidly undergoing gentrification, the city actively maintains mitigation strategies to minimize displacement of homeowners in gentrifying neighborhoods.

Orlando () is a city in the U.S. state of Florida and the county seat of Orange County. Located in Central Florida, it is the center of the Orlando metropolitan area, which had a population of 2,509,831, according to U.S. Census Bureau figures released in July 2017. These figures make it the 23rd-largest metropolitan area in the United States, the sixth-largest metropolitan area in the Southern United States, and the third-largest metropolitan area in Florida. As of 2015, Orlando had an estimated city-proper population of 280,257, making it the 73rd-largest city in the United States, the fourth-largest city in Florida, and the state's largest inland city. The City of Orlando is nicknamed "The City Beautiful," and its symbol is the Linton E. Allen Memorial Fountain, commonly referred to as simply the "Lake Eola fountain" at Lake Eola Park. Orlando is also known as "The Theme Park Capital of the World" and in 2018 its tourist attractions and events drew more than 75 million visitors. The Orlando International Airport (MCO or OIA) is the thirteenth-busiest airport in the United States and the 29th-busiest in the world.As one of the world's most visited tourist destinations, Orlando's famous attractions form the backbone of its tourism industry. The two most significant of these attractions are Walt Disney World, opened by the Walt Disney Company in 1971, and located approximately 21 miles (34 km) southwest of Downtown Orlando in Bay Lake; and the Universal Orlando Resort, opened in 1990 as a major expansion of Universal Studios Florida. With the exception of Walt Disney World, most major attractions are located along International Drive with one of these attractions being The Wheel at ICON Park Orlando. The city is also one of the busiest American cities for conferences and conventions; the Orange County Convention Center is the second-largest convention facility in the United States. Like other major cities in the Sun Belt, Orlando grew rapidly from the 1980s up into the first decade of the 21st century. Orlando is home to the University of Central Florida, which is the largest university campus in the United States in terms of enrollment as of 2015. In 2010, Orlando was listed as a "Gamma−" level global city in the World Cities Study Group's inventory.