This Costa Rican topiary park is a surreal garden of unearthly delights.

A Bibliophile's Dream.

A speakeasy takes on Chicago's drinking culture.

A lush green oasis in the middle of Chicago.

This shop for all your super spy needs hides an educational secret.

The only retired U.S. nuclear missile silo that is open to the public.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A hiking area billed as a possible home to Bigfoot.

One man's eclectic collection of treasures found at sea.

The remains of a former logging boom town, crumbled away in the forest.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

The highest point in Washington state is a volcano covered in glaciers.

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

Walking by this fence is like strolling along a portal to various fictional worlds.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

An ice cream parlor chain that caters to vegans and pinball fans equally.

A museum dedicated to the history and exploration of both popular music and science fiction.

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

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.