The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

Concrete strongholds stand guard over the Golden Gate.

Floating man-made island and upscale restaurant.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Tiny horses tethered to antique rings are scattered around the city.

Portlandia is the second-largest copper repoussé statue in the United States.

Two massive rock outcroppings on the Oregon coastline.

A collection of colorful dinosaurs hidden in an actual rainforest.

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

Only known mainland rookery of the threatened Stellar sea lion.

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

Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.

Charnel house at the foot of Mount Sinai.

One of its engravings is believed to be among the first representations of medical and surgical instruments.