An underground city of salt.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.

Krakow's own version of the Hollywood Walk of Fame.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The site of the climactic scene from the classic horror film is now a historic landmark.

The last remaining location of a drive-up hot dog stand named after a local pool shark.

Remnants of a wall built to separate Black residents of Hall's Hill from a newly built subdivision are a grim reminder of segregation in 20th-century Virginia.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

A whimsical menagerie of creatures carved into a 300-year-old tree trunk.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

Come for the flowers, stay for the bats!

Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

Though considered an eyesore by some, this boxy Brutalist high-rise plays a significant role in Sydney's past.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

Tubing through a cave lit with glowworms is a magical underground experience.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

A fascinating insight into daily life in the Eastern Bloc.