One of the only places where Earth’s mantle lies above water.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Calidum et Deliciose Succosum!

During the holidays, a vintage subway train whisks New Yorkers back in time.

This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

This elaborately-carved white marble fountain was built to stand outside the Detroit Opera House.

Recreations of a Norse longhouse and boat on Shetland's northernmost inhabited island.

From battleships to Roman vessels, this museum explores the depths of shipwrecks in the region.

From Japan to Italy, this California park explores the world's cultures through their gardens.

A little slice of Japan and its aesthetics in London's Holland Park.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

The frozen bubbles that form on the icy surface of this Canadian lake contain enough methane to create a small explosion.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

The only Native American comic shop in the world.

An architectural marvel that dates back to the zenith of Indian architecture.

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

This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

A remarkably opulent mansion with a tragic history.

An opulent testament to the boom-and-bust history of industry in north central Indiana.

The biggest solar telescope in the world helps reveal the secrets of our sun.

Even King Tut was intrigued by the glass of the Great Sand Sea.

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

This medieval manor house was equipped with secret compartments for hiding priests.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.