One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Abandoned railway line circling the city of Paris.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

Private collection of art inspired by cabinets of curiosity.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

An encyclopedic collection of mammal penises.

This woodland architectural installation acts as a camera obscura for the heavens.

The largest earthwork effigy in the world.

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

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Medicinal spa created with the discharge from a geothermal energy plant.

An exquisite tunnel of cascading flowers.