Dublin, capital of the Republic of Ireland, is on Ireland’s east coast at the mouth of the River Liffey. Its historic buildings include Dublin Castle, dating to the 13th century, and imposing St Patrick’s Cathedral, founded in 1191. City parks include landscaped St Stephen’s Green and huge Phoenix Park, containing Dublin Zoo. The National Museum of Ireland explores Irish heritage and culture.

Belfast is Northern Ireland’s capital. It was the birthplace of the RMS Titanic, which famously struck an iceberg and sunk in 1912. This legacy is recalled in the renovated dockyards’ Titanic Quarter, which includes the Titanic Belfast, an aluminium-clad museum reminiscent of a ship’s hull, as well as shipbuilder Harland & Wolff’s Drawing Offices and the Titanic Slipways, which now host open-air concerts.

Iona is a small island in the Inner Hebrides off the Ross of Mull on the western coast of Scotland. It is mainly known for Iona Abbey, though there are other buildings on the island.

St Kilda is an isolated archipelago situated 40 miles west-northwest of North Uist in the North Atlantic Ocean. It contains the westernmost islands of the Outer Hebrides of Scotland. The largest island is Hirta, whose sea cliffs are the highest in the United Kingdom.

Portree is the largest town on, and capital of, the Isle of Skye in the Inner Hebrides of Scotland. It is the location for the only secondary school on the island, Portree High School. Public transport services are limited to buses. Portree has a harbour, fringed by cliffs, with a pier designed by Thomas Telford.

Stornoway is the main town of the Western Isles and the capital of Lewis and Harris in Scotland. The town’s population is around 5,000, making it by far the largest town in the Hebrides, as well as the second largest island town in Scotland after Kirkwall in Orkney.

Lerwick is the main town and port of the Shetland Islands, Scotland. Shetland’s only burgh, Lerwick had a population of about 7,000 residents in 2010.