This castle was first occupied in the 1400s and has undergone major restoration in recent times.

An intricately decorated tiny place of worship.

Underground hospital complex constructed by slave laborers during the German occupation of the Channel Islands.

An 800-year-old island castle in Guernsey's main harbor.

One of the world's smallest prisons boasts just two small cells.

The first island in the world designated a light-pollution-free astronomical observation point.

A statue erected in honor of the toadish nickname given to Jersey residents by the French.

A passage grave used in neolithic rituals.

A humble homage to a gravedigger tucked within the dignified English cathedral.

A clumsy-looking flying locomotive rusts within sight of a busy rail station.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

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

The last Victorian market in Belfast.

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.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

One of the largest lenses of its kind ever created, this former ship beacon has been brought down to Earth.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Once used to protect important Roman trade routes.

One of the oldest Rolls-Royce automobiles in existence, this vehicle was once driven by Henry Royce himself.

One of Manchester’s museums has gathered and preserved British political paraphernalia covering over 200 years.