Hammam-Meskoutin encrusting waterfall, Algeria

Located in northeastern Algeria, the Hammam Meskhoutine site is famous for its hot spring, spa, and waterfall. The waterfall's water reaches temperatures approaching those of Iceland's geysers. Over the millennia, its water has formed a spectacular limestone formation, with conical concretions that look smooth and frozen.
This engraving is the work of late 19th-century travelers, linked to colonial interests, who wanted to showcase this part of the French Empire.