​World Travel Destinations Africa is the world's second largest and second most-populous continent (behind Asia in both categories). At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area. With 1.2 billion people as of 2016, it accounts for about 16% of the world's human population.
(WIKIPEDIA RESEARCH SOURCE)
Asia is Earth's largest and most populous continent, located primarily in the Eastern and Northern Hemispheres. It shares the continental landmass of Eurasia with the continent of Europe and the continental landmass of Afro-Eurasia with both Europe and Africa. Asia covers an area of 44,579,000 square kilometres (17,212,000 sq mi), about 30% of Earth's total land area and 8.7% of the Earth's total surface area.
​The Middle East is a transcontinental region centered on Western Asia, Turkey (both Asian and European), and Egypt (which is mostly in North Africa). Saudi Arabia is geographically the largest Middle Eastern nation while Bahrain is the smallest. The corresponding adjective is Middle Eastern and the derived noun is Middle Easterner. The term has come into wider usage as a replacement of the term Near East (as opposed to the Far East) beginning in the early 20th century.
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​Northern Europe is the general term for the geographical region in Europe that is approximately north of the southern coast of the Baltic Sea. Nations usually included within this region are Denmark, Estonia, the Faroe Islands, Finland, Iceland, Latvia, Lithuania, Norway and Sweden, and less often the United Kingdom, the Republic of Ireland, northern Germany, northern Belarus and northwest Russia.
(WIKIPEDIA RESEARCH SOURCE)​​
Southern Europe is the southern region of the European continent. Most definitions of Southern Europe, also known as Mediterranean Europe, include Gibraltar, Spain, Italy, Malta, Greece, Croatia, Bosnia and Herzegovina, Montenegro, Albania, Slovenia, the East Thrace of European Turkey and Cyprus. Portugal, Andorra, Vatican City, San Marino, Serbia and the Republic of Macedonia are also often included despite not having a coast in the Mediterranean. Some definitions may also include mainland Southern France, Corsica and Monaco, which are otherwise considered parts of Western Europe.
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​Western Europe is the region comprising the western part of Europe. Below, some different geographic, geopolitical and cultural definitions of the term are outlined.
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The Middle East is a transcontinental region centered on Western Asia, Turkey (both Asian and European), and Egypt (which is mostly in North Africa). Saudi Arabia is geographically the largest Middle Eastern nation while Bahrain is the smallest. The corresponding adjective is Middle Eastern and the derived noun is Middle Easterner. The term has come into wider usage as a replacement of the term Near East (as opposed to the Far East) beginning in the early 20th century.
​(WIKIPEDIA RESEARCH SOURCE)
Oceania is a geographic region comprising Australasia, Melanesia, Micronesia and Polynesia. Spanning the eastern and western hemispheres, Oceania covers an area of 8,525,989 square kilometres (3,291,903 sq mi) and has a population of 40 million. Situated in the southeast of the Asia-Pacific region, Oceania is the smallest continental grouping in land area and the second smallest in population after Antarctica.
​(WIKIPEDIA RESEARCH SOURCE)
​Central America is the southernmost, isthmian portion of the North American continent, which connects with the South American continent on the southeast. Central America is bordered by Mexico to the north, Colombia to the southeast, the Caribbean Sea to the east, and the Pacific Ocean to the west and south. Central America consists of seven countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panama. The combined population of Central America has been estimated to be 41,739,000 (2009 estimate) and 42,688,190 (2012 estimate).
​(WIKIPEDIA RESEARCH SOURCE)
​​North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea.
​(WIKIPEDIA RESEARCH SOURCE)
South America is a continent in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. It may also be considered a subcontinent of the Americas, which is how it is viewed in the Spanish and Portuguese-speaking regions of the Americas. The reference to South America instead of other regions (like Latin America or the Southern Cone) has increased in the last decades due to changing geopolitical dynamics (in particular, the rise of Brazil).​​
​(WIKIPEDIA RESEARCH SOURCE)