Articles Index

Zoning
An overview of zoning law and city planning in the United States.

Busiest Airports
A comprehensive listing of the world's busiest airports, from your About.com Guide to Geography. The list of the top thirty busiest airports in the world.

Historic Preservation
An overview of historic preservation, the effort to protect historic buildings from destruction, from the About.com expert Geography site.

Urban Heat Island
Cities are much warmer than their surrounding countryside due to the phenomena known as Urban Heat Islands. Discover how to combat the heat of the city, from your About.com Guide to Geography.

Erie Canal
The Erie Canal was the nation's first major transportation system. It allowed goods to be shipped to and from New York City and the Upper Midwest, starting the migration that created the USA as we know it today.

Gentrification
Learn about the controversial topic of gentrification and its impact on the urban areas as wealthy individuals move into inner cities and gentrify the neighborhoods.

Petroleum Geogaphy
Petroleum geography is the specialized branch of geography that explores the location of petroleum resources and their geographic distribution. Learn about petroleum geography from this About.com geography article.

Slash and Burn Agriculture
An overview of slash and burn agriculture, used by subsistence farmers to provide temporary fertility to the soil by burning plants. This slash and burn overview is from the About.com expert Geography site.

Geography of Agriculture
Explore the geography of agriculture from the domestication of plants and animals to commercial agriculture, from your About.com Guide to Geography.

Columbian Exposition
The Columbian Exposition was the World's Fair of 1893. Held in Chicago, it showcased many great inventions of the late 19th century. Learn all about the Columbian Exposition from Geography at About.com.

The City Beautiful Movement
Learn about the City Beautiful Movement of the late 19th century and early 20th century that established the foundations of urban planning and development. From your About.com Guide to Geography.

Garden Cities
An overview of garden cities, also known as greenbelt cities in the United States. Learn about these 20th century fully functioning master planned communities.

Land-Use Planning
Learn about land-use planning from this overview of the topic from the About.com Geography site.

An Overview of Suburbs
An overview of the history, growth, and development of suburbs.

Central Place Theory
The About.com Geography Site provides this easy-to-understand overview of Central Place Theory, from contributing writer Amanda Briney.

Edge City
Learn about the phenomenon of edge cities, developed by Joel Garreau, on the outskirts of major metropolitan areas.

CBD
The CBD or Central Business District is focal point of a city. It is the commercial and office center of the city and usually is the center point for transportation networks.

Primate Cities
Learn about law of primate cities and the rank-size rule of urban geography, from your About.com Guide to Geography.

Interstate Highways
A brief history and overview of the United States interstate highway system, from your About.com Guide to Geography.

Site and Situation
The terms site and situation are used in the field of geography to help us understand why a city is located where it is located. Learn about these basic geographic concepts of site and situation.

Largest Cities in the World - List One
A listing of the largest cities and most populous cities in the world, based on metropolitan urban agglomerations population.

Sectors of the Economy
An overview of the primary, secondary, tertiary, quaternary, and even quinary sectors of the economy, from your About.com Guide to Geography. These sectors of the economy can divide all economic activities of a country into five categories.

Pacific Rim and Economic Tigers
The Pacific Rim includes countries bordering the Pacific Ocean from North and South America to Asia to Oceania. Most of these countries have experienced major economic change and growth to become components of an economically integrated trade region. Raw material and finished goods are shipped between Pacific Rim states for manufacture, packaging, and sale. Four of the Pacific Rim territories have been called "Economic Tigers" due to their aggressive economies.

Geography of Passenger Rail Networks
Guest columnist Brett J. Lucas explores the geographic relationship of passenger rail, from short-haul to long-haul passenger train routes.

Largest Cities in the World - List Two
A listing of the largest and most populous urban areas in the world, based on gross metropolitan urban agglomeration population.

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