A spherical "micro-nation" in the heart of Vienna.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

Artfully arranged bones of 5,800 Austrians.

Austria's very first and only nuclear power station was completed but never used.

A pyramid in Central Europe of unknown origin.

The world's oldest known salt mine.

A breathtaking viewing platform over the Alps.

This "mathematical tower" was an observatory, early skyscraper, and place to reflect on all of nature and the cosmos.

An Argentinian businessman facing terminal cancer built this whimsical medieval village using salvaged materials.

A toxic lake near a volcanic caldera that is home to flamingos and other life.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

This stunning mass of ice spans 121 square miles and is still growing.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

This Dutch art piece became a Russian icon.

More than a millennium's worth of municipal records preserve the political history of Austria.

Apartment complexes built into huge repurposed natural gas tanks.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

The resting place for anonymous victims of the Danube's dark waters.

An IT-specialist-turned-farmer reintroduces an Austrian food tradition while promoting snails as a sustainable "future food" option.