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

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

Treehouse motel and treehouse-building school.

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

This charmingly homemade amusement park has been growing for 40 years.

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

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

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

Beyond being incredibly fun, not much can be said about the Hole with certitude.

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

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

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

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.

These locks on North America’s oldest canal are named after a porcine rock formation.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Train tunnel running underneath Quebec City.

This Quebec estate is home to the elaborate gardens of a self-taught horticulturist.

This three-chambered cave is the only protected natural bat hibernaculum in Quebec.

A lake in the middle of the tundra of Quebec is said to be the purest freshwater lake on Earth.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

This massive, ancient stone was disassembled and then put back together again.

This Toronto garden collects stares and tchotchkes in equal measure.