Places thedoubtfulguests Wants to Go

This artistic fountain display pays homage to this area's theatrical history.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

A favorite with sightseers and locals alike, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

Fantastic views and thousands of love locks.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

Carved fountains poignantly placed in parks and in front of special monuments.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

This multisensory alley has the ability to remind bustling citygoers to stop and smell the roses.

This former office building has been transformed into an immersive music venue and art space.

Nature and art meet in this curvy creation

The Fun Farm weaves fairy tales, myths, and magic into a magnificent collection for visitors to explore.

This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

Located more than 600 feet beneath sea level, this tunnel boasts the world's first undersea roundabout.

An architect transformed this abandoned cement factory into his castle-like workshop.

The unexpectedly beloved remnants of a controversial thermal power plant.

This semi-secret storybook hedge maze is also the oldest garden in the city.

One of Europe's largest supercomputers is housed inside of a disused chapel.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.