An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

Millions of numbers carved in glass represent the tattoos forced upon victims.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

Experience what life was like in Ireland during the Viking and medieval ages.

The oldest public library in Ireland.

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

One of Ireland's most infamous prisons for rebels including men, women and children.

The last Victorian market in Belfast.

Northern Ireland's Brobdingnagian stepping stones.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

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

The atmospheric road was never meant to be so creepy.

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

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

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

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

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

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

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

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

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