A hidden stream deep in the mountains creates one of the largest tufa waterfalls in Serbia.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

A modernist landscape of water and sci-fi concrete.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

Concrete spud looks like the North American Sebago.

This massive water spout has been luring visitors for hundreds of years, some to their death.

Native Australian lizards inhabit this garden celebrating Sydney and its sister city in China.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A state-of-the-art medical facility dedicated to treating beloved birds of prey.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This horseshoe-shaped waterfall is the second-largest on the African continent.

This striking otherworldly landscape outside Angola's capital city is the product of millions of years of erosion.

A public display of prehistoric space rocks is named for the Namibian village where they were found.

Hitch a boat ride to dine on stilts while watching wildlife.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

The lowest point in South Dakota and the source of the Minnesota River.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A fitting attraction for the corn capital of the world.