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.

Explore 400,000 years of humans' "battle against darkness" in this offbeat but thorough lamp museum.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

The massive machine creates cracking displays of indoor lightning.

The site of Paul Revere's historic two lantern warning.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Robotic car thieves, freakish animals and huge neon floats in Northern Ireland's capital.

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

A brisk climb up this solitary peak leads to the origin story of a towering figure in Irish history.

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

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.