Physical Geography
generate maps of a specified country
compute the great-circle distance between points on the globe
find the elevation of a city
look up your IP address and estimate your location
get information about a mountain
compare volcanoes
get information about a group of islands
find glaciers meeting a given criteria
get information about a desert
get information about an impact crater on Earth
get information about an ocean
get information about an undersea feature
get information about a lake
do computations with river properties
compare several waterfalls