A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

The last Victorian market in Belfast.

The modern birthplace of Irish freedom.

These murals stand as reminders to the troubled history of this Northern Ireland city.

Northern Ireland's Brobdingnagian stepping stones.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

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

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

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

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

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

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

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

The heads of two giant mythological water horses honor Scotland's horselord past.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

Hidden beneath a washing machine in a fake kibbutz, this secret bullet factory has been preserved as a museum.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Taking the subway here means doing so over a bridge located in the middle of an estuary.