On Japan's Tashirojima Island, cats are king.

An exquisite tunnel of cascading flowers.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

A magical place that lets you play in and explore the world of Studio Ghibli.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Staves, storm-calling, and of course, necropants.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Drift through underground caves on a tube.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

The short hike is worth the stunning views and crystal blue waters of a secluded beach.

The ruins of the first Spanish settlement in Puerto Rico.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

This small fort played a huge role defending Puerto Rico’s capital city.

Invading U.S. troops were first seen from this now-abandoned tower, leading to the Spanish-American War.

An unnatural lake in a naturally beautiful setting.

This nearly abandoned "company town" is a ghost of Puerto Rico's once-lucrative sugar industry.

The abandoned remains of this once-thriving hotel looms over the city, awaiting an uncertain future.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

Years of neglect and nature took a toll on this 19th-century lighthouse.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

Puerto Rico's oldest rum producer started its 140-year-old business with "a little barrel."