A world-class collection of mechanical musical instruments and automata.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

A unique sculpture park that specializes in the huge and bizarre.

A soon-to-be-forgotten roadside spectacle loaded with local lore.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A curious collection of mechanical moving figures.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A peace symbol in Northern Ireland is among the world's largest hedge mazes.

A tribute to the couples who brave long periods of separation during wartime.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

A house filled to the brim with oddities and curiosities.

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

A self-built mosaic house and sculpture park.

This fairytale-inspired cottage was created by a university literature professor.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

A Roman spa buried deep beneath the City of London.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.