All aboard the world's longest miniature railway.

A botanic garden full of trees twisted into fantastic shapes and positions.

The long, arduous journey of the stones of the Abbey of New Clairvaux.

A Roman-inspired temple once controlled half of San Francisco's waters.

Hollowed out cedar log tubs set in an ancient towering forest.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

The longest continuous lava tube in Oregon.

100-year-old shipwreck you can walk up to at low tide.

Only known mainland rookery of the threatened Stellar sea lion.

Treehouse motel and treehouse-building school.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

This frequently-photographed waterfall takes only a short hike to visit.

A heavenly experience, right here on Terra Firma.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A beautiful 62-acre Catholic shrine and botanical garden.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

On the Oregon coast there is a natural hole that seems to be draining the sea.

This little slice of the Netherlands in the Pacific Northwest blooms in a rainbow of color each spring.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

A huge enchanting public park just outside the ancient walls of Rome.

This abandoned Brutalist treehouse is a hidden architectural relic.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.