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 # Built Heritage Challenge 
 3D printing or “additive manufacturing” has fast become an important method of research visualization. Here in LEADR, we have 3 different types of 3D printers (MakerBot Z18, Ultimaker Extended 2+ and PRUSA mini) and a total of 4 printers in the main lab space. Historians and Anthropologists have manufactured visual representations of their research whether that be a 3D terrain map representing a specific area, a historical object, or heritage buildings and objects to create effective arguments that explain phenomena.
 
-Sign up here: https://forms.gle/F3jo9cMWP8M9YSmS9 
+Sign up here: [https://forms.gle/F3jo9cMWP8M9YSmS9](https://forms.gle/F3jo9cMWP8M9YSmS9)
 
 <h2 id="challenge">Challenge:</h2>
 
-Your task as part of LEADR10 is to build and 3D print a UNESCO World Heritage site. Using SketchUp and any of the 3D printers in the lab, we challenge you to create a 3D model of one of the sites in this list: https://whc.unesco.org/en/list/ . 
+Your task as part of LEADR10 is to build and 3D print a UNESCO World Heritage site. Using SketchUp and any of the 3D printers in the lab, we challenge you to create a 3D model of one of the sites in this list: [https://whc.unesco.org/en/list/](https://whc.unesco.org/en/list/). 
 
 <h2 id="guidleines">Guidelines:</h2>