This bridge provides safe passage for squirrels.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

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

Only known mainland rookery of the threatened Stellar sea lion.

A heavenly experience, right here on Terra Firma.

Tens of thousands of tiny birds swarm into one school chimney every fall.

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

Their motto is, "We've been bonkers for hats even longer than you have!"

Shakespeare has been brought to life in this open air theater for the better part of a century.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.

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

A vertically floating hemlock controls the waves and weather at Crater Lake.

This perfectly preserved Chinese medicine shop was untouched for decades before being reopened as a museum.

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

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

A volcanic fissure over two miles long and up to 70 feet deep.

This 90-year-old building is home to possibly the most New Englandy social club in existence.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

Where America's first doomsday cult awaited the end of the world.

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

The remains of this visionary community can still be found much as it was a century ago.

The entire length of the border is marked by a 20-foot-wide slash through the trees.