If you’ve ever toured a cave, you’re likely familiar with stalactites, stalagmites, columns, soda straws, and flowstone. Maybe even draperies and cave bacon. But have you ever heard of a calcite flower? Or seen a pool of water so reflective that you mistake the reflection for a deep recess of the cave? Every cave offers something special. A calcite flower and the reflective water are just two unique attributes in southern Indiana’s Marengo Cave, arguably the most decorated cave in the Interior Lowlands of the United States.