A wall of chewing gum moonlights as collective art.

A Roman-style column in Oregon hides a spiral staircase inside.

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

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

No two pieces are exactly the same at Portland's hippo-themed hardware store.

The magic's in the hole!

A sculpture of a salmon swimming through a brick building.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

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

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

Only known mainland rookery of the threatened Stellar sea lion.

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

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

Two massive rock outcroppings on the Oregon coastline.

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

The sprawling attraction boasts a collection of more than 150 historic wagons.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

This Old West prison built into the side of a cliff was said to be inescapable.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

This bridge provides safe passage for squirrels.

A heavenly experience, right here on Terra Firma.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

This abandoned boat sits on a nude beach, is shaped like a UFO, and is covered in graffiti.