Topographic maps with actual topography from the Library of Congress, including one made of chocolate. https://blogs.loc.gov/maps/2025/04/a-unique-perspective-unusual-topographic-maps-in-the-collections/
A Unique Perspective – Unusual Topographic Maps in the Collections | Worlds Revealed
The Geography and Map Division has thousands of topographic maps in its collections but some have a unique take on the rest of the category. This blog post highlights several maps and models that stand out as being different in form and shape from other topographic maps including a chocolate bar map, a pop up map, and a map made of compressed paper among others.