Christ's blood allegedly preserved in a Belgian town.

Most prolific publishing house in the 1600s open to the public.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

A miniature city, once ruled by the Queen of the Netherlands.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

This large open-air museum showcases the ordinary lives of the people of the Netherlands and pre-industrial crafts and practices.

Cat art as far as the eye can see.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

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

A 1975 bylaw prohibits the construction of any building that would block the view of this Gothic Revival church.

This Cistercian monastery was the first in the German-speaking world

These tenacious 14th-century towers defied demolition and are now a fairytale vacation rental.

Take a walk in a recreation of ancient Rome.

This "floating railway" is one of the world's oldest monorail systems.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

The last bastion of Roman presence north of the Alps looms over a German town.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

A sculpture of a courtesan towers above Lake Constance, recalling a church scandal.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Blending modern art with Baroque architecture, this wondrous mosaic grotto serves as the late artist's final creation.

Hamburgers are intensely proud of their tunnel beneath the river.