The hottest place on the planet.

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

Rimmed by white crusts of salt on every edge, Lac Assal is one of the saltiest bodies of water in the world.

A salt lake dotted with steaming limestone chimneys.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

A forsaken wonder in the middle of the East Side neighborhood.

Ruins of a once-prized railroad station in New York.

A 19th-century architectural wonder designed by the "father of the skyscraper."

The seat of Buffalo government is a gorgeous Art Deco palace.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

Deep into the lower floors of Pike Place, find a date with fowl fate.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

France's most famous cemetery, with some of its most curious tombs.

A phantasmagoric tomb honors a Belgian artist-scientist's contributions to the world of spooky entertainment.

This former industrial site has transformed into a community sculpture garden that hosts monthly Full Moon parties.

The world’s largest Masonic temple was saved by the White Stripes.

This 20-foot-tall sculpture is in honor of the herd of bighorn sheep that call Radium Hot Springs home.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

A huge Soviet-era robotics factory in the outskirts of Pripyat, now long-abandoned.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.