To save friends time looking, I am going to list links of free paper models you can download, print out and construct. Here we go (in no particular order):
7 Wonders of the World, The Great Pyramid:
7 Wonders of the World, The Hanging Gardens of Babylon:
7 Wonders of the World: Temple of Artimis:
7 Wonders of the World: Tomb of King Maussolus
7 Wonders: The Pharos (lighthouse) of Alexandria
The other 2 of the 7 Wonders do not have models or pages yet:
The Great Statue of Zeus and The Colossus at Rhodes
The general 7 Wonders page is: http://www.delta7studios.com/wonders.htm
Happy paper modeling!