The art museum is decorated with creatively remodeled pre-Nazi swastikas.

An old Danish political institution where members of government can grab a drink off the record.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

This ultra-modern wooden boardwalk turns the ocean into a swimming pool.

A golden egg-shaped sauna in the Arctic tundra.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

A museum in the childhood house of a medical pioneer.

A Hungarian pharmacy museum with a box full of mummy powder.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

Museum dedicated to the terror regimes of Hungary.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

A Hungarian optometrist's charming collection of Asian art and curiosities.

The world's largest maze is a nature park with nearly 200 decision points.

This sublime architectural marvel is a rare example of an expressionist church.