Tower Rock, a limestone formation in the middle of the Mississippi River, is newly accessible by foot. The destination is now popular with tourists, the Missouri Department of Conservation said. The ...

Natural bridges are rock formations shaped by geological activity over millions of years. Let's take a look at some of these stunning natural structures. Pont d'Arc, FranceA popular tourist attraction ...

Nature doesn’t follow blueprints, and sometimes the result is strange enough to stop you in your tracks. Around the world, erosion, lava, and sediment have shaped landscapes that feel less like ...

Madagascar's limestone cliffs provide an exhilarating rock climbing experience, unlike any other. The unique geological ...