Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

This grave resides at the crossroad of three parishes.

These "bridges" help confused bats cross the road.

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

The most loyal of little dogs, or a Victorian era publicity stunt?

Largest lake in Great Britain measured by surface area.

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

Cascading waterfalls mark the gateway to the ancient burial place of Clan Macnab.

This eclectic sanctuary is a hodgepodge of various architectural styles, all crammed into one building.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

Northern Ireland's Brobdingnagian stepping stones.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

These engineering masterpieces are a dominant feature of the Belfast skyline.

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

The last Victorian market in Belfast.

A museum marks and documents the site of the Titanic's launch.

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

The atmospheric road was never meant to be so creepy.

The designer of this railway tunnel added a birthday present for himself.

The only medieval bridge in Britain with its defensive tower still in tact.

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