Northern Ireland's Brobdingnagian stepping stones.

The ancient tomb acts as a calendar that keeps perfect time.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.

This historic Victorian hotel has a scandalous history of affairs and murder.

This Italianate house was the childhood home of the prominent Canadian painter, Emily Carr.

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

This sandstone mansion was the home of two of Oregon's most important pioneers.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

The wooden airship was the largest flying boat ever built.

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

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

The world's last remaining store of its kind.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

Treehouse motel and treehouse-building school.

A chance to sleep among the firs and pines of the Oregon forest.

This natural marble cave is one of only five national monuments in Oregon.

A tourist attraction founded around a slumping cabin.

Home of Howard Hughes' Spruce Goose.

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

The largest wooden building in the world now houses a fascinating collection of aircraft.

Only known mainland rookery of the threatened Stellar sea lion.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.