The Mendenhall Ice Caves in Alaska are part of the Mendenhall Glacier, which stretches 13 miles ... Vietnam: Natural Wonders ...

From stunning prismatic springs that boast beautiful colors to salt flats that make one feel like they are walking on clouds, ...

But you don’t need to travel outside of the U.S. to discover world-class natural wonders and one-of-a kind experiences. From dazzling Northern Lights to desert landscapes, to erupting volcanoes ...

Here are 15 must-see natural wonders the world over. (Getty Images)| Norway; Finland; Sweden; Iceland; Canada Aurora borealis, also known as the northern lights, is a scenic wonder that can only ...