They look a little like crop circles and a little like artistic earthworks. Around the world, they have many names: in the Namib Desert of Africa, they’re called “fairy circles;” in Brazil they’re ...

In 1995, divers noticed a beautiful, strange circular pattern on the seafloor off Japan, and soon after, more circles were discovered nearby. Some likened these formations to "underwater crop circles.

Looking for a challenging and stimulating activity? Try solving a pattern-based puzzle posted on Instagram by Optical Illusions. The puzzle presents three patterns and asks you to predict the next ...