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

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

The United Arab Emirates's biggest and oldest fort pays homage to a lost era.

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

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

A narrow ghost town built onto a peninsula behind a Colombian Slum.

The once-dying town of Sheffield, Tasmania has reinvented itself as a village of painted wonders.

A roundabout in the West Indies that pays tribute to a bus driver who brokered no-nonsense on the school route.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

A pocket of jungle amidst urban expansion in Panama.

Sloth rehabilitation center in the jungle of Costa Rica.

A crumbling cathedral condemned by an earthquake.

Guatemalan womanizer, venerated during Holy Week.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

A little sculpture with a large wardrobe.

Constructed on the ruins of a convent, this tower saved countless lives.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.