I am totally agree with Prasad.You can have a look at below article where the concept is same,so you can see how it works.
A Quick Start Lesson to the ASP.NET ImageMap Control[
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[EDIT]:
ImageMap.NET[
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ASP.Net Imagemap Hotspot shapes[
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In that,images have specific hotspots. On clicking that hotspots,it navigates to URL(It can be anything). So you can move forward such that,your images shows hotspot,if anyone clicks the hotspot,it should navigate to the specific news related file.