Spiral labyrinth hidden in the hills above Oakland, CA.

A bizarre house filled with an astounding array of collections.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

The Laureates here get something even more coveted than a Nobel Prize: free parking for life.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Not for the faint of heart, this long pedestrian bridge rewards those who brave the wobbly walk with a beautiful view.

With its webbed walls and bright red coloring, Calgary's iconic bridge looks like a finger trap puzzle stretched across the river.

This massive mall has hundreds of shops, an amusement park, and a history of deadly amusement attractions.

Hoodoos, naturally eroded land formations, stand 20 feet tall in the Canadian badlands.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

Only hotel where you can legally launder money.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Recovered from the brink of extinction, at home in the Financial District.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

Gold Rush-era tombstones line the park's paths.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.