This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

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

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

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

Hidden beneath the streets of London is a secret subway that only carried mail.

Northern Ireland's Brobdingnagian stepping stones.

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The hottest, driest, and most scenic desert on Earth.

Leaking natural gas never stops burning on this hill, making it an infinite inferno.

A graveyard of old and rare planes that once were the glory of Persian aviation.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

An unrealized dream to wirelessly electrify the entire Earth.

Canada's subterranean Cold War museum has doubled as a movie set.

Rare signs of the former Soviet Union in the Caribbean, though not where you'd expect them.

Retirement home for giant obsolete machines.

The prototype for all Nazi concentration camps.

This Arctic mining town is home to a cat that's spent years masquerading as a fox.