An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

This old-fashioned roadhouse's quirky neon sign is as famous as its enormous dumplings.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

This tiny home built on revenge appears to be scarcely wider than a Volkswagen.

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

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

One artist's yard is full of shining, whirling kinetic sculptures that look like pure steel psychedelia.

Bonsai trees that are up to a thousand years old.

A fine, large-aperture telescope available for public use.

Old submarine parts have been converted into faux whale fins.

Hundreds of hopeful gold miners came here to get rich, but only two years later the small town was deserted.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

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

Tour the original street level of Port Angeles, buried underground in 1914.

This medieval village/restaurant perpetually celebrates the year 1376.

A whimsical village of unique treehouses resides in a Washington forest.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

"The House That Love Built" is shying away from "The House That Ghosts Love."

This former coal gasification plant found a curious second life as a popular public park.

An obscure waterfall that looks like something out of a fantasy novel.