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

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

The angel of death appears to weep black tears at this grave marker.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

Spiral labyrinth hidden in the hills above Oakland, CA.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

This large collection of tiny things revels in the art of fine machinery well made.

What began as an illegal art installation has become a symbol for unity, ocean awareness, and coastline preservation.

See the rare bloom of the "Queen of the Night" cactus at one of the world's largest succulent collections.

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

France's national museum of scientific and industrial instruments.

Notorious artist squat renovated into legal studios.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

A haunting collection of the vanished and disappearing natural world.

This eclectic architectural gem played witness to Zurich’s colonial past.

An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The oldest stone house in Paris was built by its most famous alchemist.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The very center of Paris is surrounded by a bevy of strange good luck rituals.