Google Earth puts a planet's worth of imagery and other geographic information right on your desktop

The whole world is covered with medium resolution imagery and terrain data. This resolution allows you to see major geographic features and man-made development such as towns, but not detail of individual buildings. Additional high-resolution imagery which reveals detail for individual buildings is available for most of the major cities in the US, Western Europe, Canada, and the UK. 3D buildings are represented in 38 US cities (the major urban areas). Detailed road maps are available for the US, Canada, the UK, and Western Europe. And Google Local search is available for the US, Canada, and the UK.

CPU	500 Mhz
RAM	127 MB
HDD	200 MB
Video	capable video card with 16MB VRAM, 1024x768 32-bit screen
Other	Broadband/Cable Internet