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.

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

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

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

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

Northern Ireland's Brobdingnagian stepping stones.

A brother statue swap has adorned this building's facade for centuries.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

The former home of the world-famous Templeton Carpet Factory.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

The largest terracotta fountain in the world, built to commemorate Britain’s Victorian achievements.

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

This neon sign is an homage to an Alfred Hitchcock film.

The Guinness Record holder as the "tallest cinema in the world" is a building with screens in almost every one of its 12 floors

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Hear the quietest sound from across the dome.

The commemorative stone column conceals a secret laboratory.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

This ancient Egyptian obelisk still bears the wounds of World War I.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.