Alexander von Humboldt (1769-1859) was a German naturalist and is regarded as the co-founder of geography as an empirical science. During the course of his extensive travels, he discovered the beauty of our world in its many forms. The fact that this puzzle collection bears his name is a fitting testament to his foundational contributions to the field of science. Heye's Humboldt collection of puzzles are a pleasure to assemble, but can be a bit challenging for beginners. The images are truly stunning, and they make exceptional wall decorations when framed.