Geoffrey Migiro

Written by Geoffrey Migiro

The Purus River is the longest river in South America.

World Facts

The Longest Rivers in South America

The definition of which countries are core, periphery, or semi-periphery can evolve as countries develop.

World Facts

What Are Periphery Countries?

Tree rings are studied in both paleoclimatology and paleotempestology.

Environment

The Different Branches Of Atmospheric Science

The most popularly used confederate flag was the banner used by the army from Northern Virginia led by General Lee.

Politics

What is the Confederate Flag?

The flag symbolizes a united Korea and is used every time the two countries participate in a sporting event as one team.

World Facts

North and South Korea Marching Under the Same Flag

Corvin Castle is one of the largest castles in Europe.

Travel

15 Amazing Medieval Castles

Glasgow Cathedral marks the birthplace of Glasgow.

Society

Glasgow Cathedral - Notable Cathedrals

Bishop Rock, in the Atlantic Ocean, is sometimes called the world's smallest island.

Environment

What Is The Smallest Island in the World?

A Ferrari 250 GTO 1962, like the one pictured above, was purchased at auction for $38,115,000. Editorial credit: Krzyzak / Shutterstock.com

Did You Know

The World's Most Expensive Cars

View of Niagara Falls during a cold snap.

Environment

What Is A Polar Vortex?

Statue of George Washington in front of the Federal Hall National Memorial.

Politics

When and Why Was the United States Capital Moved to Washington DC?

St. Paul, Minnesota, one of the twin cities.

World Facts

What Are the Twin Cities?

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