Find a variety of facts about the geography of Virginia: geographic center, total area, elevations, and much more.

Can you figure this? If it is afternoon in San Francisco, California, what time is it in Cairo, Egypt? Explore positive and negative number values in this one page activity using time zones from different parts of the world.

Discover interesting and fun facts about the International Date Line.

A map of Africa showing the continent prior to the Berlin Conference of 1885, when the most powerful countries in Europe at the time convened to make their territorial claims on Africa and establish their colonial borders at the start of...

A map from 1858 of North America showing the boundaries at the time for Russian America (Alaska), Greenland, British America or New Britain, Canada East and Canada West, the United States, Mexico, Central America, and the West Indies...

A map from 1872 of the West Indies and Central America. The map shows political boundaries at the time, capitals, major cities, and ports, railroads, main steamship routes, rivers, terrain and coastal features, and banks. The map shows...

A map from 1899 of the Philippine Islands. The Philippines at the time of this map had recently been taken as a possession of the United States under the Treaty of Paris at the end of the Spanish-American War (December 10, 1898), and the...

Part of the Exploring Planets in the Classroom series, this site provides images of the Moon, with Latitude and Longitude reference lines.

Part of the Exploring Planets in the Classroom series, this site provides images of the Moon, with Latitude and Longitude reference lines.

Part of the Exploring Planets in the Classroom series, this site provides images of the Moon, with Latitude and Longitude reference lines.

Part of the Exploring Planets in the Classroom series, this site provides images of the Moon, with Latitude and Longitude reference lines.

This URL will start you out at the site map for Rice University's study of longitude and navigation. Scroll to the section titled "Oceans" and you will find some very good information on surface currents, especially those of the South...

Map of pre-colonial Africa, showing the predominately native countries and territories of the African continent in 1879. The counties include the Barbary States of Morocco, Algeria, Tunis, Tripoli and Fezzan, the Egyptian territories of...

A map of Asia from 1872, showing physical features including mountain systems, deserts, lakes, rivers with direction of flow, coastal features, and ocean currents, political boundaries and foreign possessions at the time, and commercial...

A map from 1920 of the province of Quebec from the St. Lawrence River to Hudson Bay and the Hudson Strait. The map shows the Dominion capital of Ottawa, Province capital of Quebec City, major cities and towns, existing and proposed...

A map from 1920 of the province of Quebec from the St. Lawrence River to Hudson Bay and the Hudson Strait. The map shows the Dominion capital of Ottawa, Province capital of Quebec City, major cities and towns, existing and proposed...

A map from 1920 of the northern part of the province of Ontario. The map shows the capital of Ottawa, major cities and towns, existing and proposed railways, county boundaries, forest reserve boundaries, national park boundaries, Indian...

A map from 1920 of the southern part of the province of Ontario. The map shows the capital of Ottawa, provincial capital of Toronto, major cities and towns, existing and proposed railways, county boundaries, forest reserve boundaries,...

A map from 1883 of the eastern part of Canada showing the political boundaries at the time, the capital and provincial capitals, major cities and towns, railways, mountains, lakes, rivers, coastal features, and islands. The territories...

A map of Europe on a simple conic projection showing straight meridians or lines of longitude, and concentric circular parallels or lines of latitude.

A map from 1872 of Mexico, showing states and state capitals, major cities, towns, and ports, railroads, lakes and rivers, mountain systems, terrain, and coastal features. Steamship routes to major ports are shown, with distances marked...

A map from 1903 of Nevada showing counties and county seats, principal cities and towns, mountain ranges, and rivers. "Nevada, one of the most western of the States of the American Union, was formed from a portion of the territory...

A map from 1899 of North America, Central America, and the Caribbean showing national boundaries, capitals and major cities, terrain, lakes, rivers, and coastal features. The map shows longitude from Greenwich at the top of the map, and...

A map from 1888 of North America, Central America, and Caribbean showing national boundaries at the time, major cities, mountain systems, rivers, and coastal features. The province boundaries of the Dominion of Canada are shown,...