Treehouse motel and treehouse-building school.

A public fountain that spouts "health water" from a nearby spring.

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

Only known mainland rookery of the threatened Stellar sea lion.

Two massive rock outcroppings on the Oregon coastline.

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

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

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

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

The magic's in the hole!

A memorial sculpture to heath hens stands on the spot where the last heath hen, Booming Ben, was last seen.

An eccentric inventor's castle home with its own indoor weather system.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A decidedly out of place statue memorializes the Blues Brothers characters at this water bottling plant.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

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