Google Earth lets you fly anywhere on Earth to view satellite imagery, maps, terrain, 3D buildings, from galaxies in outer space to the canyons of the ocean. You can explore rich geographical content, save your toured places, and share with others.

Google Earth features:
Historical imagery from around the globe
Ocean floor and surface data from marine experts
Simplified touring with audio and voice recording

This download is a 500K+ Installer file which, when run, will download the rest of the application.