Download Google Earth now

There is an excellent Google Earth User Guide at the site.

I thought it would be interesting to search for world architecture and civic/public squares and to mark and tag it in Google Earth. Here are some topic suggestions:

• St.Peter's Square (Piazza San Pietro), Rome
• St. Mark's Cathedral (Piazza San Marco), Venice
• Colosseum, Rome
• Chartres Cathedral, Chartres
• Parthenon, Athens
• The Palm Islands, Dubai, UAE
• Empire State Building, New York City
• Sear's Tower, Chicago
• CN Tower, Toronto

In the Google Earth User Guide see section "Marking Places" for:

• Creating a New Placemark
• Saving a Point of Interest
• Sharing a Placemark
• Saving Search Results
• Saving Images
• Printing

You can now search for various landmarks in interesting cities, find images of high resolution and present these on a powerpoint slideshow for a class presentation. Have fun!