Authorities Decided to Drain This River But Didn't Expect to Find This at the Bottom

20 Scariest Things Found In Rivers. Rivers often considered basic natural features, unveil a complexity that transcends simplicity. Flowing through cities, forests, and fields, these bodies of water have yielded countless intriguing and sometimes fear-inducing discoveries over the years. From the most famous face to fish with human-like teeth, join us as we reveal the twenty scariest things found in rivers..