This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

The ruins of a medieval monastery named after a type of tree.

A stunning Victorian abbey and walled garden on a lakefront.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

The ancient tomb acts as a calendar that keeps perfect time.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The heads of two giant mythological water horses honor Scotland's horselord past.

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.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This 1920s Dutch barge is now a floating bookstore.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

The world's oldest and largest museum of mass transit vehicles.

The world's largest rotating world.

The most photographed house in Maine looks good enough to eat.

This tiny patch of arid sand sits in one of the greenest states in the United States.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

Home of the only civilian casualty at the Battle of Gettysburg.