The seamy, underground secrets of Portland's criminal past.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

A common entry point to the Griffith Observatory trail holds its own wonders.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

A castle that was built stone by stone by an eccentric journalist.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

The location of the last stand of Charles Manson's doomsday cult.

A 1950s Googie burger stand is now a Los Angeles landmark.

Explore more than 130,000 new and used books in the "world's largest outdoor bookstore."

Rusty pieces of metal jutting out of a breakwater are all that's visible of the 12,500-ton ocean liner that capsized just off the beach.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Gouged in the mountain to make stage coach access easier through the Fremont Pass.

A kaleidoscopic warehouse-maze of handmade neon signs.

This bronze statue was erected to honor a small Scottish town's beloved stray cat.

A bronze tribute to the wildly popular video game from the '90s.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A collection of biblical memorabilia.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.