These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This lucky bronze frog was gifted to Madrid by a casino.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A scattered trail of street art adds a pop of color to the city's stark structures.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Famously misunderstood wonder of the ancient world

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Ancient human remains unearthed around the iconic monument.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A pastry shop specializing in Sephardic sweets serves historic recipes in Ribadavia’s Jewish quarter.

This stop on the Camino de Santiago stands high above the underwater ruins of a medieval town.

Commonly acknowledged as the only public monument to the Devil himself.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

A unique tribute to the millions of animals who served and died for the British military.

This secluded walkway overlooks a magnificently wild London green space.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.