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

It was once nicknamed "the most bombed hotel in Europe."

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

Belfast's namesake river still winds below the city center, hidden from sight.

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

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

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

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.

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

The last Victorian market in Belfast.

The only monument to name all of the passengers and crew who died on the RMS Titanic.

The statue honors a beloved bird that once roamed St. George's Market.

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

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

Designed to commemorate the king's coronation.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."