Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

Museum devoted to the artificial language of Esperanto.

A local dialect born in the late 19th century is only spoken in this isolated California valley.

Trace the history of writing at this unusual North Carolina destination.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Lavish royal estate punctuated with heated greenhouses.

Home to three historic ships from the age of Vikings.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Copenhagen's celebrated theme park and gardens.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A quirky house created entirely out of glass bottles combines a collector's spirit with an artist's flair.

On a quiet suburban street stands a peculiarly decorated house covered in mosaics.

Whimsical artist house in the New Jersey woods.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

Personal garden filled with mosaics made of recycled garbage.

Mosaics created from 11 million cigar bands.

A former milk-delivery driver and his wife turn their home into a glimmering mosaic.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

Detailed facade of a brownstone in Boerum Hill.