One of America's first spies started out as a teacher in this little red one-room schoolhouse.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

A Wild West jailhouse that slid down the mountainside.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

The near loss of the stately fireplaces at this medieval castle spawned some of Britain's most crucial historic preservation laws.

This bridge provides safe passage for squirrels.

Be(w)ar(e) the moat around this historic Czech castle.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

A mysterious spot where the laws of gravity seem not to apply.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

The largest portal tomb in Europe has a capstone weighing around 150 tons.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

The unbelievably opulent home built for an infamous newspaperman.

Largest lake in Great Britain measured by surface area.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

A heavenly experience, right here on Terra Firma.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

Despite its name, this route in southern Utah offers a heavenly day trip.