The fantastic architectural models of a French traveler.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The final resting place of the poets Shelley and Keats.

The stately remains of Llywelyn the Great's mighty fortress.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A petite castle folly in the English countryside.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

World's first "penitentiary," meant to be humane, drove men insane.

New York City's only preserved family home from the 19th century.

The world's largest neutrino telescope searches for secrets of the universe at the South Pole.

Massive installation of Europe's negative stereotypes.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

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

Resting place of Hollywood's immortals is also site of summer film screenings.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

For more than 40 years this Barnum-inspired half-fox, half-woman has been telling fortunes from her cage in a Pakistani zoo.