The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This rock bore witness to the last pitched battle fought on British soil.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

A magnificent, iconic stone tower in the Scottish Highlands.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Three columns of volcanic rock shoot out of the ocean.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Built in 1821 using rooms from another estate, the Phillips House is the only historic home on scenic Chestnut Street open to the public.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

This large stone off the coast of Martinique had a brief career in the Royal Navy.

A haunting memorial to Africans kidnapped and lost at sea during the slave trade.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."