The fifth-longest natural arch in the world, and the longest outside China.

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A tunnel with windows, so you don't miss out on the impressive views.

After the parade, students throw their beads on the tree hoping for good luck on exams.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

Dramatic river bend surrounds a natural red-rocked pedestal.

Traversing these canyons, visitors can take in stunning views and glimpses of the region's history.

Four hundred granite steps were built into this massive rock by the National Park Service.

Quite simply the largest tree in the world (by volume).

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

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

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

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

A wall of chewing gum moonlights as collective art.

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

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

A giant Troll lurks under one of Seattle's oldest bridges.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

The oldest experimental corn field in America is still creating better ways to grow crops.