This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

This ancient city - home to nine civilizations - is soon to be buried under 200 feet of water.

Planned as the world’s first zero-carbon city, it had lofty ideals—but is only 5 percent completed and aiming for 50 percent carbon-neutral.

The ruins of a bombed medieval village memorialize the destruction of the Spanish Civil War.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This rare wildlife haven in Singapore feels like you're in the tropical rainforest.

It took over 100 years to decode this enigmatic epitaph for two buried brides.

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

Explore a uniquely pristine Borneo forest, now protected by former headhunters turned tour guides.

This former small-town cinema palace was built with the remains of a luxury liner.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

"The House That Love Built" is shying away from "The House That Ghosts Love."

This stunning concert hall has become a symbol of Iceland's national recovery.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

An inconspicuous footbridge beloved by San Diego locals.

The only place in America where anyone who wants can shovel coal aboard an antique train.

100 year tradition of fist fights, marked by marble footsteps.

This remote castle was built to be a wealthy businessman's palace of vice but is now simply a historic vacation cottage.

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The former home of Norway's greatest romantic composer.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.