Google Earth

Google Earth is a virtual globe, map and geographical information program. It maps the Earth by the superimposition of images obtained from satellite imagery, aerial photography and GIS 3D globe.

You can download Google Earth in the following links:

• http://www.google.co.uk/intl/en_uk/earth/index.html (English, UK).
• http://www.google.es/intl/es_es/earth/index.html (Spanish).

The program itself has a help section. You can also get support from a tutorial in Google Earth's website and there is a huge amount of information in the forum.

So, download and install Google Earth as soon as possible!