A 1,215-foot tunnel transports pedestrians beneath the River Thames.

This striking statue brings a scene from the African savannah into central London.

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

A wonderfully preserved example of London's 1960s-style high-density, low-rise public housing.

A beer pipeline runs beneath Bruges.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

Christ's blood allegedly preserved in a Belgian town.

A herd of half-sized cow sculptures has stood in this part for nearly 50 years.

Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

The second-largest giant sequoia in the world.

A unique sculpture park that features the works of several famed artists.

Today, Kent's medieval monarchs hold court on a busy pedestrian thoroughfare—or at least their statues do.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

Thought to be the only herd of feral horses in Africa and one of the most isolated populations in the world.

Kakadu National Park is known for its stunning beauty and its rock art, which represents the longest historical records of any continuous civilization on Earth.

This sculpture encompasses the emotion of rail travel.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

The arching stretch of London's longest street holds many reminders of the area's maritime past.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

Down a pint of ale where the Bishop of Ely's servants slept in 1546.

This statue points to another unusual companion work of art often overlooked by visitors.

A dozen cast iron leopards stand guard along the length of Aberdeen's Union Bridge.