A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

This secluded walkway overlooks a magnificently wild London green space.

A memorial to a dog that inspired rioting in the streets of London.

A Roman spa buried deep beneath the City of London.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

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

The remains of the great moral philosopher reside in a university in London.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

The cedar tree in Highgate Cemetery earned its title by accident.

Public access to clean drinking water was an instant hit among the masses.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The monster at the center of the Darwin Center Spirit Collection.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

Dictionary Johnson’s favorite feline.

This 1920s Dutch barge is now a floating bookstore.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

A historic arboretum and non-conformist, non-denominational park cemetery.

Repository for more than 22 million pickled specimens.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.