Giant, pink stuffed rabbit on an Italian mountain.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

At high tide this strange footbridge appears to have no purpose whatsoever.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

An abandoned castle owned and ignored by Masons carries a cursed history.

A bizarre house filled with an astounding array of collections.

A stone circle on the slopes of a Caribbean volcano commemorates the leader of an anti-slavery uprising.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

This one-time health resort was used by aristocrats around the world.

The summer residence of a Spanish ambassador who brought viticulture to an impoverished region, sparking its transformation into one of the world's best wine regions.

The only surviving fragment of the lost Narragansett Pier Casino.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

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

This extraordinary geological oddity resembles human-made pavement.

The walls and streets of the ancient city are peppered with penises.

One man's vision and a labor of love of many.

One man's goal to be surrounded by color resulted in this enchanting assortment of avian abodes.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

Another in a long tradition of legends regarding infernal seats.

A wartime promise becomes a shrine to Our Lady of Lourdes.

The world's third-largest scale model of the planets.

An enormous natural sandstone bridge in Kentucky.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.