This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

The longest staircase lock in Britain.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

Largest lake in Great Britain measured by surface area.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

A bizarre stone beast lurks on the beach of a popular tourist island.

This stately estate house features a tower covered in a bright, modern mural.

An allegorical statue of a giant pregnant woman representing justice and truth.

An optical Illusion once believed to be an electrical phenomenon.

Now in ruins, this castle stood for centuries and saw a number of gruesome events.

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

Legend says those who drink from this trickle of water are destined to return to Montserrat.

George Martin's Caribbean recording studio now rots within the shadow of an active volcano.

Georgetown’s most impressive building is also one of the tallest wooden churches in the world.

In 1943 the British military took control of this village, telling residents they had to leave temporarily. The villagers were never allowed to return.

Before 1993, this historic-looking village—King Charles III's pet project—didn’t exist at all.

Macabre astrological automaton clock dating to the late 1400s.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

It was once nicknamed "the most bombed hotel in Europe."

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The last Victorian market in Belfast.