Stalin's prisoner-built rail line sits in ruin, never having a single car ride its tracks.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

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

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

A naturally occurring tunnel in this Nordic mountain makes it look like it's been shot.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

A series of eerie metal stick figures are spread out over four square miles on the bed of a huge salt lake in the Australian Outback.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

Nestled in the jungles of Vanuatu are the remains of what was once a cannibal oven.

This Australian beach is composed of tiny shells.

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

Florida's first suspension bridge.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A ghost town that held steady longer than most, but finally gave up the ghost.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

On Japan's Tashirojima Island, cats are king.

The world's largest neutrino telescope searches for secrets of the universe at the South Pole.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.