On Japan's Tashirojima Island, cats are king.

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

An exquisite tunnel of cascading flowers.

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

It's always summer at the beach inside this former airship hangar.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

An elevator into the Baltic Sea.

No need to strap in for a "ride" on this walkable roller coaster.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

"The most colorful grottoes of the world.

A stairway to heaven, or to nowhere at all.

This "floating railway" is one of the world's oldest monorail systems.

Where once there was a train station bathroom, there is now this German burger joint.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The fairy tale castle of the "fairy-tale king."

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A slice of central Asia in the middle of Berlin.

Started as a kitchen garden, now the second largest botanical garden in the world.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

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

The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.