Afghanistan, officially the Islamic Republic of Afghanistan, is a landlocked country in South and Central Asia. Afghanistan is bordered by Pakistan to the east and south; Iran to the west; Turkmenistan, Uzbekistan, and Tajikistan to the north; and China to the northeast.

Albania, on Southeastern Europe’s Balkan Peninsula, is a small country with Adriatic and Ionian coastlines and an interior crossed by the Albanian Alps. The country has many castles and archaeological sites. Capital Tirana centers on sprawling Skanderbeg Square, site of the National History Museum, with exhibits spanning antiquity to post-communism, and frescoed Et’hem Bey Mosque.Albania, on Southeastern Europe’s Balkan Peninsula, is a small country with Adriatic and Ionian coastlines and an interior crossed by the Albanian Alps. The country has many castles and archaeological sites. Capital Tirana centers on sprawling Skanderbeg Square, site of the National History Museum, with exhibits spanning antiquity to post-communism, and frescoed Et’hem Bey Mosque.

Baltimore is a major city in Maryland with a long history as an important seaport. Fort McHenry, birthplace of the U.S. national anthem, “The Star-Spangled Banner,” sits at the mouth of Baltimore’s Inner Harbor. Today, this harbor area offers shops, upscale crab shacks and attractions like the Civil War–era warship the USS Constellation and the National Aquarium, showcasing thousands of marine creatures.

Bolivia is a country in central South America, with a varied terrain spanning Andes Mountains, the Atacama Desert and Amazon Basin rainforest. At more than 3,500m, its administrative capital, La Paz, sits on the Andes’ Altiplano plateau with snow-capped Mt. Illimani in the background. Nearby is glass-smooth Lake Titicaca, the continent’s largest lake, straddling the border with Peru.

Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. At 8.5 million square kilometers and with over 211 million people, Brazil is the world's fifth-largest country by area and the sixth most populous.

Cameroon, on the Gulf of Guinea, is a Central African country of varied terrain and wildlife. Its inland capital, Yaoundé, and its biggest city, the seaport Douala, are transit points to ecotourism sites as well as beach resorts like Kribi – near the Chutes de la Lobé waterfalls, which plunge directly into the sea – and Limbe, where the Limbe Wildlife Centre houses rescued primates.

China, officially the People's Republic of China, is a country in East Asia. It is the world's most populous country, with a population of around 1.428 billion in 2017. Covering approximately 9,600,000 square kilometers, it is the world's third or fourth largest country by area.

Cuba, officially the Republic of Cuba, is a country comprising the island of Cuba as well as Isla de la Juventud and several minor archipelagos. Cuba is located in the northern Caribbean where the Caribbean Sea, Gulf of Mexico and Atlantic Ocean meet.

Ethiopia, in the Horn of Africa, is a rugged, landlocked country split by the Great Rift Valley. With archaeological finds dating back more than 3 million years, it’s a place of ancient culture. Among its important sites are Lalibela with its rock-cut Christian churches from the 12th–13th centuries. Aksum is the ruins of an ancient city with obelisks, tombs, castles and Our Lady Mary of Zion church.

Ghana, officially the Republic of Ghana, is a country located along the Gulf of Guinea and Atlantic Ocean, in the subregion of West Africa.

India, officially the Republic of India, is a country in South Asia. It is the second-most populous country, the seventh-largest country by area, and the most populous democracy in the world.

Iran, also called Persia, and officially the Islamic Republic of Iran, is a country in Western Asia. With 83 million inhabitants, Iran is the world's 18th most populous country. Its territory spans 1,648,195 km², making it the second largest country in the Middle East and the 17th largest in the world.

Israel, a Middle Eastern country on the Mediterranean Sea, is regarded by Jews, Christians and Muslims as the biblical Holy Land. Its most sacred sites are in Jerusalem. Within its Old City, the Temple Mount complex includes the Dome of the Rock shrine, the historic Western Wall, Al-Aqsa Mosque and the Church of the Holy Sepulchre. Israel's financial hub, Tel Aviv, is known for its Bauhaus architecture and beaches.

Jamaica, a Caribbean island nation, has a lush topography of mountains, rainforests and reef-lined beaches. Many of its all-inclusive resorts are clustered in Montego Bay, with its British-colonial architecture, and Negril, known for its diving and snorkeling sites. Jamaica is famed as the birthplace of reggae music, and its capital Kingston is home to the Bob Marley Museum, dedicated to the famous singer.

South Korea, an East Asian nation on the southern half of the Korean Peninsula, shares one of the world’s most heavily militarized borders with North Korea. It’s equally known for its green, hilly countryside dotted with cherry trees and centuries-old Buddhist temples, plus its coastal fishing villages, sub-tropical islands and high-tech cities such as Seoul, the capital.

Maryland is a Mid-Atlantic state that's defined by its abundant waterways and coastlines on the Chesapeake Bay and Atlantic Ocean. Its largest city, Baltimore, has a long history as a major seaport. Fort McHenry, birthplace of the U.S. national anthem, sits at the mouth of Baltimore’s Inner Harbor, home to the National Aquarium and Maryland Science Center.

Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the world's fifth-most populous country with a population exceeding 212.2 million. By area, it is the 33rd-largest country, spanning 881,913 square kilometres.

Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. Bordered by Egypt to the north, Libya to the northwest, Chad to the west, the Central African Republic to the southwest, South Sudan to the south, Ethiopia to the southeast, Eritrea to the east, and the Red Sea to the northeast.

Syria, officially the Syrian Arab Republic, is a country in Western Asia, bordering Lebanon to the southwest, the Mediterranean Sea to the west, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest.

The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation’s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.

Vietnam is a Southeast Asian country on the South China Sea known for its beaches, rivers, Buddhist pagodas and bustling cities. Hanoi, the capital, pays homage to the nation’s iconic Communist-era leader, Ho Chi Minh, via a huge marble mausoleum. Ho Chi Minh City (formerly Saigon) has French colonial landmarks, plus Vietnamese War history museums and the Củ Chi tunnels, used by Viet Cong soldiers.

Virginia, a southeastern U.S. state, stretches from the Chesapeake Bay to the Appalachian Mountains, with a long Atlantic coastline. It's one of the 13 original colonies, with historic landmarks including Monticello, founding father Thomas Jefferson’s iconic Charlottesville plantation. The Jamestown Settlement and Colonial Williamsburg are living-history museums reenacting Colonial and Revolutionary-era life.

Washington, DC, the U.S. capital, is a compact city on the Potomac River, bordering the states of Maryland and Virginia. It’s defined by imposing neoclassical monuments and buildings – including the iconic ones that house the federal government’s 3 branches: the Capitol, White House and Supreme Court. It's also home to iconic museums and performing-arts venues such as the Kennedy Center.

Yemen, sometimes spelled Yaman, officially the Republic of Yemen, is a country at the southern end of the Arabian Peninsula in Western Asia. It is the second-largest Arab sovereign state in the peninsula, occupying 527,970 square kilometres. The coastline stretches for about 2,000 kilometres.