This clifftop arch is a natural stunner.

In this museum, visitors are invited to touch the art.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

A ring of soy sauce bottle bases decorate an important Singaporean landmark.

Featuring the last fully walkable parapet walkway in Europe.

A ruined castle stands atop a hill surrounded by dragon lore.

This scenic waterfront swimming pool is the longest salt water pool in North America.

These natural stone bridges are the largest on the European continent.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This rock formation named for its unique shape is one of many that call the Alabama Hills home.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

This unique graffiti art from the 1940s has become a staple of this local landscape in the remote California desert.

The world's largest wooden structure.

This gas station offers wine tastings and craft beer.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

Blue-green pools and smooth stones comprise one of Spain’s most idyllic hidden wonders.

High in the mountains of Kochi Prefecture, a magnificent library designed by a world-famous architect.

Inside the Šomoška National Nature Reserve exists a unique rock formation rarely seen in the world.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

Flames have been burning within this mountain for more than 2,500 years.

The best-preserved ancient theater in the world.

A magnificent collection of imperial armor and weaponry.