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

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

The bones of two medieval royal lions were discovered at the historic fortress.

An Irish cemetery filled with victims of political strife and violent conflict, including the grave of Bobby Sands.

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

It is said a heartbroken man visited the gap every day to stare blankly out at the sea.

Every year locals give the bear a fresh coat of paint to preserve its signature goofy grin.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Putting the "mod" in "modular" since 2000.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

Huge winged monument in the United Kingdom.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

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

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

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

Follow the original medieval paths that wind through this intriguing section of the city.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Fascinating town where normal life interfaces with the occult.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

Famously misunderstood wonder of the ancient world

The pockmarks across the building's facade are remnants of the Blitz.