After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Experience what life was like in Ireland during the Viking and medieval ages.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

Outsider art meets paleontology at this roadside reptile repository.

One street divides a single town that stands in two U.S. states.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

An alternate history park where the Union Army loses the war... to dinosaurs.

The oddly shaped, steam-spewing building is now an art studio and gallery.

This historic mansion was built as a symbol of love between a husband and wife.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

This museum explores the grim reality of life in the earliest British colonies in America.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

This stunning home looks like it belongs in medieval Europe, not North Carolina.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

New York's oldest magic store.