This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

A winding, cliffside stretch of road overlooking the Delaware River.

When North America was covered in ice, this was an oasis in the frozen desert.

A Victorian garden in a harsh climate at the border of the prairies and foothills of the Canadian Rockies.

Ride aboard a centuries-year-old steam engine and explore dozens of trains parts, including an unusual "comboose."

Hundreds of enormous icebergs drift through this waterway every year.

What was to be the world's most secure Cold War document vault ended up as just a few shallow caves.

The world's largest dark sky preserve is a Canadian park established to preserve the country's last wood bison.

The ruins of the "20-year town" lay out among the mountains of Alberta.

The most southern point you can drive to in the Western Hemisphere.

It's where the final scene of the beloved Tom Hanks movie was filmed.

The final resting place of the Hunkpapa Lakota leader Tatanka Iyotaka, commonly known by the English translation Sitting Bull.

An artist weaves "wooden quilts" with scraps salvaged from his Katrina-damaged home in Tremé.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

A cheeky architectural easter egg.

An abandoned fish-shaped drive-in gets a second life as a restaurant.

A corkscrew-shaped barn in Ireland.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

A spiral staircase twists to the top of this unusual Czech lookout tower.

A serene temple with stunning stained glass hides in downtown Dallas.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

Twisted trees shaped by coastal winds make this woodland look like something from a spooky story.