A collection of biblical memorabilia.

A unique collection of gilded age mechanical pianos.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A curious collection dedicated to human and animal anatomy and pathology.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

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

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

The first museum in the world devoted to sexual gadgetry.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Walk through Czech history in Prague's largest graveyard.

Two stunning 17th-century libraries and a cabinet of curiosities.

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

This former prison now houses a lovely library devoted to Quebec's oft-maligned English-speaking history.

Small church built in the 19th century for whites and slaves to worship together.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The curios of pharmacist and collector Henry Wellcome.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

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