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

A hand-built folk art installation covered with messages of God's love.

Famously misunderstood wonder of the ancient world

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Macabre astrological automaton clock dating to the late 1400s.

A walk through the historic city center, under the streets of Seattle.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Staves, storm-calling, and of course, necropants.

Notorious artist squat renovated into legal studios.

The ghostly remains of an accidental sea.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The fairy tale castle of the "fairy-tale king."

A church of bones, decorated with 40,000 human skeletons.

Medicinal spa created with the discharge from a geothermal energy plant.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.