These rusting, skeletal structures are monolithic monuments to Glasgow's industrial past

The castle that provided the setting for much of 'Monty Python and the Holy Grail' is now a pilgrimage site for fans.

A whimsical cottage from the 1300s with a preserved Victorian-era post office inside.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

Also known as “Robin Hood’s tree,” it became a famed location along Hadrian's Wall before it was cut down.

These picturesque ruins crumble beautifully into the ocean.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

Museum celebrating the history of computers, especially their role in codebreaking.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

Huge winged monument in the United Kingdom.

These remarkable cascades are the jewels of Upper Tees.

Great Britain's only hat-making museum.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

These barriers stand as stark reminders of Northern Ireland's troubled past.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

The oldest working mechanical clock in the world.

A perfectly running 230-year-old silver automaton and music box.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This fantastical and eclectic English garden takes its inspiration from Egypt, China, the occult and more.