One woman's Viking Castle on Lake Tahoe.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

Elevated freight railway turned wildly successful urban park.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

It was once the base for a series of domestic terror attacks.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

The site of the climactic scene from the classic horror film is now a historic landmark.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

European castle ruins in an American state park are actually the product of death and grief.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

This century-old roadside attraction is full of bizarre rock formations.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

What happens when a sculptor has to find a way around a 100-year-old copyright.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A wall of chewing gum moonlights as collective art.

This former coal gasification plant found a curious second life as a popular public park.

The highest point in Washington state is a volcano covered in glaciers.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

The magic's in the hole!

A massive sea stack famous for its appearance in The Goonies.

Stroll through a wonderland of stupendous moss-covered trees.