The unusual patterns in this rock formation result from two distinct modes of weathering.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

The formidable fowl can be found standing near an isolated hiking path.

Hawaii’s largest cemetery rests inside an extinct volcano crater.

"The country that ate itself."

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Spectacular views await visitors to this lake.

The point where New South Wales meets Queensland and South Australia.

Finding the exact middle of a giant land mass is hard to determine, but this spot managed to do the trick.

Swim in these hot springs filled with three-million-year-old water, deep in the Australian Outback.

Along the Stuart Highway, two giant sculptures tower over the roadway.

The UFO capital of Australia is the outback’s answer to Roswell.

The museum describes the story of how an Australian airline with a single biplane became one of the biggest in the world.

An oversized Van Gogh reproduction is one of three massive sunflower paintings across the globe.

A monument to the moth that saved Australia from a cactus crisis.

Resonant stone, that has been played since prehistoric times.

Spring that emits water and fire at the same time is said to have remedial properties, and sparked its own religion.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

A public park commemorating the iconic works of a satirist, with medieval ruins on the side.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

Mysterious hillside with a continuously burning natural fire.

A shrine of fire worship built on top of a natural flame.

A massive collection of petroglyphs dating back some 40,000 years.