Topographical Survey of the Mummelsee and Wildsee

The image is divided into three horizontal panels. The top panel shows a sweeping bird's-eye view of mountainous terrain with a path winding through trees toward a village labeled 'Cappel'. The middle panel focuses on the circular Mummelsee, depicted with two large, swimming aquatic creatures resembling dragons or monsters, and small human figures standing on the shore. The bottom panel provides a perspective of the Wildsee, nested within a crater-like depression in the mountains, complete with a compass rose oriented toward the cardinal directions. All panels utilize detailed cross-hatching to define terrain, shadows, and the reflective surfaces of the water.

This work is from Kircher's 'Mundus Subterraneus', a foundational text of 17th-century natural philosophy that attempted to map the interior of the earth, including the hydrological features of regional landscapes through a mix of empirical observation and speculative geology.