An alley covered with 20 years of bubble gum.

The ruins of the castle that chemicals built.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

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

A beautiful 62-acre Catholic shrine and botanical garden.

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

The magic's in the hole!

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

Seven ceramic sculptures are scattered around this California college campus.

A man-made island in scenic San Francisco Bay.

The restored and active Victorian-era final resting place of San Francisco.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A ruined hotel with an unlucky history and an eerie present.

This private residence was the template for one of the most beloved television homes of all time.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

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

The legendary building that needed ghostly approval before being built.

World's largest collection of serial killer artwork and other macabre exhibits.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.