They're helpful if you want to sleep, too: One video, "Relax 8 Hours-Relaxing Nature Sounds-Study-Sleep-Meditation-Water Sounds-Bird Song," has become a famous source of relief for insomnia sufferers.

A gardener took to Reddit to share pictures of their vibrant outdoor space with the Internet, including an absolutely incredible water feature. Posting in the r/gardening subreddit, they shared ...