A relic from one of London's worst 19th-century slums.

This hidden green space is the city's second largest conservatory.

The last four extravagant street signs of London's historic banking street.

The grounds of this Jacobean estate contain one of the oldest mulberry trees in England.

An unsanctioned shrine that sprung up outside the late singer's home is causing a stir in London's Highgate neighborhood.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

Black cat statues guard this temple-like Egyptian revival factory.

This secret garden has bloomed into London's most unique hub of urban creativity.

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

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

This 1920s Dutch barge is now a floating bookstore.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

This secluded walkway overlooks a magnificently wild London green space.

Hackney's newest private museum and natural curiosity shop.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

A measuring mishap led to these artificial stone ladies losing their stomachs.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

A little slice of Japan and its aesthetics in London's Holland Park.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

The fences outside some of South London's estates are made from recycled World War II stretchers.