These icons, plus others that are too numerous to show, were created for a Holt, Rinehart, and Winston Social Studies series (US History, World History, etc.). All of the icons were created in Adobe Illustrator and used in the series' many thematic maps, many of which TMF produced.

If however you are looking for something with more three dimensional and photorealisitc "pop", make sure to take a look at the icons in the 3D Photorealistic portfolio.