This gnarled old tree supposedly sprouted from seeds kept in the pocket of a 16th-century Spanish sailor.

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

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

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

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

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

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

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

A monument to the 70s rock icon stands on the road into this small Scottish town.

A bronze tribute to the wildly popular video game from the '90s.

People leave coins atop an unusual grave marker in one of Scotland's oldest burial grounds.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Try not to get slimed in Tribeca.

Glasgow’s piece of the patron saint of love.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

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

The modern birthplace of Irish freedom.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This single-track road rewards brave drivers with stunning Scottish scenery.

An incredibly well-preserved piece of ninth-century Viking poop.