A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

Recently restored menagerie of Victorian-era beasts.

The castle still holds traces of the abandoned Roman fort it was built atop.

In 1977, an eccentric book lover formed a micronation for book lovers.

The longest and tallest aqueduct in Britain can actually be sailed across.

This ancient abbey now lies in majestic ruin behind a caravan park.

One of the largest objects salvaged from the famous sunken passenger ship.

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

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

This bronze statue was dedicated to a 1966 Beatles hit.

The modern birthplace of Irish freedom.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

Despite the name, this 16th-century structure in Galway wasn't built by the Spanish.

Glasgow's oldest pub has a proud literary tradition and possibly a ghost or two.

The abandoned transportation hub hides within the Glasgow attraction it once served.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

The longest staircase lock in Britain.

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.

A close look reveals that the Scottish monument is just slightly off-kilter.

A solemn memorial in a majestic setting that honors a 1692 tragedy.

This Neolithic-era complex boasts standing stones, a cairn, and the only henge in Western Scotland.

A pagan tradition of draping trees with rags eerily lives on.