The Global Hydrology Resource Center (GHRC) provides both historical and current Earth science data, information, and products from satellite, airborne, and surface-based instruments.
This service uses data from the US Census and a supplementary list of cities around the world to find the latitude and longitude of two places, and then calculates the distance between them (as the crow flies).
The Geography Exchange offers you a wealth of geographical information, a growing selection of our own web pages created by qualified teachers, and over 700 carefully selected and annotated links to other World Wide Web geography resources.
Population Connection is a national nonprofit organization working to slow population growth and achieve a sustainable balance between the Earth's people and its resources.
Each page contains basic information on the country, including its formal name, capital city, area, population, currency, languages, and religions. The flags include the national and state flags, ensigns, and sub-national flags.