This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

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

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

A corkscrew-shaped barn in Ireland.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

An unusual manor of stunning beauty, born out of a crippling disease.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

One of Ireland's most infamous prisons for rebels including men, women and children.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

The mansion home of author Edith Wharton.

This candy-colored storybook village originated as a 19th-century Methodist campground.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

35,000 grape hyacinths flow like water down a garden hill.

An eccentric inventor's castle home with its own indoor weather system.

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

A beautiful Victorian-era cemetery, complete with a miniature village.

An enormous, inside-out glass globe built in 1935.