A completely underground tour following the path of the most precious element: water.

Iceland: home to volcanoes, waterfalls and, apparently, Santa?

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

An entire subdivision was accidentally built on a flood plain, resulting in its eventual demolition—but the streets are still there.

Roadside Americana, fairy tale characters, and Austin quirkiness come together at this magical course in the heart of Texas' capital city.

The scant remains of this flooded historic village can be explored in one of the most remote areas of the Great Smokies.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

A piece of outsider public art accompanied by a strange urban legend.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.