An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

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

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

More stones than Stonehenge, all scattered within a windswept landscape sure to enchant 'Outlander' fans.

This tiny island is home to the world's largest colony of Northern gannets.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

This amazingly preserved Doric temple was abandoned before it was ever completed.

Tourists to the mountaintop Sicilian town often overlook its ancient fortifications.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

This monastery built into a cliff hides a perfectly preserved hermit in a glass coffin.

The tomb of the mythological founder of Padua is not hidden in some obscure crypt, but stands right in the middle of the city square.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

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

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

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

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.