The attic of a four-century-old canal house hides a clandestine church.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

The last Victorian market in Belfast.

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

This massive monument has been telling the time for 150 years—at a slight angle.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

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

A series of stained glass artworks that depict images of the hit TV show.

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

Northern Ireland's Brobdingnagian stepping stones.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

These murals stand as reminders to the troubled history of this Northern Ireland city.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

A magnificent, iconic stone tower in the Scottish Highlands.

Spend the night in this formerly abandoned traditional Scottish village.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

A whale's jawbone and a malfunctioning harpoon welcome you to the village of Bragar and its lore.

The 5,000-year-old megalith is believed to be Scotland's tallest standing stone.

A memorial dedicated to a boating accident that was bringing troops back home from World War I.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.

This Arcadian garden in the Pentland Hills boasts over 270 artworks by Scottish artist and poet, Ian Hamilton Finlay.

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

This building's name and a plaque are all that's left of what was probably the most important nightclub of the Madchester music scene.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.