Explore Google Earth 4, to explore..
{Tech}

The latest version of Google Earth has quite a few very interesting features such as the ability for 3D models to have textures and a new user interface. Also, it is now possible to see animations on Google Earth to show geographic changes during different seasons and stuff.
You can take some time to wonder on this.. Here's an excerpt from google page:

Seeing 3D terrain and buildings is one of the coolest features of Google Earth. We’ve added higher-quality terrain data for many mountainous regions, as well as support for "textured" 3D buildings-meaning bricks look like real bricks, glass looks like real glass, and overall, the world looks more like the real world. It's just one more step on the path of creating a life-like 3D model of the whole planet.

Millions of Google Earth users add and share geographic information every day using .KML, the Google Earth file format. In Google Earth 4 we've expanded that capability. Now you can view travel photos, hiking trails uploaded from your GPS, overlays of your own imagery, or large geographic data sets. You can even times-tamp the data to create animations of how the world changes over time. Explore Google Earth Showcase for some popular examples.

Download it here ..