What this Good Friday parade lacks in baroque filigree it makes up in somber gothic imagery.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A 200-year-old collection of medical paraphernalia in a historic house.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

A small collection of magic tricks and memorabilia is now an apartment-sized museum.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

This giant crucifix is like U2's Joshua Tree for Swedish death metal fans.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

The library's graceful rotunda is like a bibliophile's temple.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The attic of a four-century-old canal house hides a clandestine church.

Museum preserving torture methods from the past.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

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

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

This Canadian exhibit with claims as the largest one man taxidermy collection in North America.

The sign at the garden gate reads: "These Plants Can Kill."

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.