Joyce Chepkemoi

Written by Joyce Chepkemoi

The UK's Lake District is an example of a tourist region.

World Facts

What is a Region?

Nuclear-powered submarines can stay underwater for several weeks or even months.

World Facts

Countries With Nuclear Submarines

Places des Arts is the largest performing center in Canada. Editorial credit: EQRoy / Shutterstock.com.

World Facts

The Largest Concert Halls in Canada

The United States lies within the central portion of the continent of North America.

World Facts

What Continent Is The United States of America In?

Paleolithic era cave paintings in the Magura Cave in Bulgaria, a UNESCO World Heritage site.

World Facts

When Was the Paleolithic Age?

San Marino relies on the tourism industry.

World Facts

The Smallest Economies in Europe

At this time, Bhutan does not have any official UNESCO World Heritage Sites.

World Facts

Countries Without UNESCO World Heritage Sites

San Diego has more than 150 high rise buildings of which 32 buildings have a height of more than 300 feet.

World Facts

The Tallest Buildings In San Diego

The capital of Bulgaria, Sofia. Editorial credit: Takashi Images / Shutterstock.com.

World Facts

When Did Bulgaria Gain Independence?

Viaduct 13, in Brazil, is the largest railway bridge in South America and among the world's 25 most tall.

World Facts

The Tallest Railway Bridges in the World

Portland is the largest city in the state of Oregon.

World Facts

The Tallest Buildings in Portland

Moscow's skyline is dominated with high-rise buildings.

World Facts

Cities with the Most High-Rise Buildings

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