The curiosities and wonders of pharmacy in a delightful historic building.

A floating cat sanctuary on an Amsterdam canal.

New York City's smallest piece of private property.

The narrowest street in Paris.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

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

A beautiful 62-acre Catholic shrine and botanical garden.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

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

This South London cemetery holds the remains of more than 15,000 people.

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

This massive library holds what was once the largest book collection in the world.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

France's most famous cemetery, with some of its most curious tombs.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

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

A huge musical instrument played by the ocean.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A dilapidated dock tells the story of Titanic's missed arrival.