A building so large that it has its own weather.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

Abandoned ship reimagined as a street art canvas.

This 1776 beacon on the coast of Wales is said to have a ghost called Raymond, the last lighthouse keeper.

Built in 1911, the Tees Transporter Bridge is one of only six transporter bridges still in operation.

The ruins of a sixth-century monastery sit on the banks of the River Shannon.

The ruins of a medieval monastery named after a type of tree.

One of Ireland's most infamous prisons for rebels including men, women and children.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

An ancient neolithic tomb that only sees the sun twice a year.

This Neolithic passage tomb forms part of a World Heritage Site.

The ancient tomb acts as a calendar that keeps perfect time.

The highest peak in Northern Ireland is topped with a stone tower and haunting burial mounds.

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

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.

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

400 million years of erosion shaped these fascinating seaside caves, which made an appearance on 'Game of Thrones.'

The atmospheric road was never meant to be so creepy.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

This short bridge is the only thing connecting a tiny Irish island to the mainland.