This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

A museum has some wedding cake dating to the Teddy Roosevelt administration, and some bacon from FDR's.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

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

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

Historic home to one of the most famous women pioneers of the 19th century.

Church and home-museum of a 1920s female revivalist preacher with a very sordid past.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A Texas museum filled with Broncos and Betties.

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

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

On La Gomera, "Silbadors" communicate in a 4,000-word language of whistles.

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

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

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

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

Seemingly unremarkable items like empty sushi trays, chef hats, and freshness stickers are being preserved so future generations can look back on this beloved cultural import.

An old abandoned pharmacy building in Texas is brimming with collectibles and images of the little tuxedoed pooch.

This museum glorifies the humble potato.