This 30-foot pile of rocks may be the grave of a mythological Irish queen.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

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

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

Northern Ireland's Brobdingnagian stepping stones.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

This mundane post marks the old location of the city's main postal hub.

The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

From here, the loch appears to take the shape of mainland Scotland.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

This single-track road rewards brave drivers with stunning Scottish scenery.

A sweet symbol marks the place where torturous executions were once carried out.

A scattered trail of street art adds a pop of color to the city's stark structures.

Largest lake in Great Britain measured by surface area.

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

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

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

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