A hands-off space for graffiti artists to hone and display their skills.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

Despite the name, this 16th-century structure in Galway wasn't built by the Spanish.

A derelict hunting lodge that was once the site of aristocratic debauchery.

On the clock tower at St. Anne's Church in Cork, you never know which face is telling the truth.

These small, triangular, colorful houses are a staple of Madeira Island.

A lush oasis full of vibrant plants and striking geometric displays.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

Containing a personal collection of more than 1,200 jugs from around the world.

This windmill has been grinding pigments for traditional paints for more than 200 years.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

This Dutch art piece became a Russian icon.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

In the upscale neighborhood of Miraflores in Lima, a pretty little park is home to dozens of cats.

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

This is the place where U2’s lead singer got his nickname.

A monument to a beloved aquatic folk hero in the Irish town of Dingle.

Inside Cork's Kent station stands its country's longest-serving postbox.

The Dublin sea wall draws walkers, photographers, and fishing enthusiasts.

A 1930s-style speakeasy with a secret doorway and one-of-a-kind cocktails.

Have fun at the world's first Buddhist waterslide park.

Covering 13 acres and hosting 3,000 shops, this is one of Africa's biggest urban markets.