Mundus Subterraneus

Mundus subterraneus, quo universae denique naturae divitiae (very roughly "The subterranean world, all its riches") is a scientific textbook written by Athanasius Kircher, and published in 1665. The work depicts Earth's geography through textual description, as well as lavish illustrations.

Kircher had already advocated in favor of rationalism and natural laws in the explanation of phenomena, rejecting miraculous explanations. He expanded on the concept with this book.