Anyone wanting to know what a dwarven mine sounds like need only visit the tunnels of this New Zealand artillery compound.

Referred to as "the crappiest fountain ever," this sculpture has been splashing unknowing passersby since 1969.

One of Indiana's only natural sandstone arches is nestled between resort ruins and an old Boy Scouts camp.

A tribute shrine where the Space Invasion street art movement started.

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.

This Parisian café is dedicated to great tea and the art of knitting.

The video game-themed street art first popped up in the French city.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

This Parisian café sticks almost exclusively to an ethos of reuse.

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

A museum of carnival attractions where you are invited to ride the rides.

Paris' linguistic guide to the international language of, yes, love.

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

This 1920s Dutch barge is now a floating bookstore.

A roadside shrine to a late rock god only remains thanks to the unyielding efforts of his fans.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.