This cubist Vienna church building looks like some sort of alien stonehenge.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

This abandoned Brutalist treehouse is a hidden architectural relic.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

This hotel is an amazing example of the Escuela Tapatía de Arquitectura movement.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

This hidden green space is the city's second largest conservatory.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

These traffic lights celebrate the 100 year anniversary of the women's suffrage movement in Lithuania.

An abandoned masterpiece of Soviet Brutalist architecture.

An artist's mausoleum with a haunting echo.

Tens of thousands of tiny bottles stuffed with various items.

One thousand trees were planted in Norway to be used to print books a century from now.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

A small collection of magic tricks and memorabilia is now an apartment-sized museum.

Home to three historic ships from the age of Vikings.

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.