Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

The rust covering this old mine's abandoned buildings matches the red pigment it once produced.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

An iconic waterwheel in the Pennine Hills marks the location of one of Britain’s most profitable lead mines.

These remarkable cascades are the jewels of Upper Tees.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

The dramatic remains of an abandoned farmhouse sit high on the edge of a remote hillside.

A spectacular disused railway viaduct in a beautiful countryside nature reserve.

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.

This jewel of an engine is one of Northern England's finest surviving legacies of the Industrial Revolution, even catching the eye of Henry Ford.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

A repurposed railway tunnel with otherworldly acoustic characteristics.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

A stretch of land where the sour-sweet vegetable is cloaked in darkness and grows so fast you can hear it crack, squeak, and pop.

A museum devoted to the science of color.

Cycle the solar system—from the sun to Pluto—right here on earth.

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The world's only museum devoted to the wonders of fluorescence.

A floating cat sanctuary on an Amsterdam canal.