The pretty iron lamp is a reminder of the architecture underneath London's streets.

These ornate arches show how the course of the River Thames has changed.

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

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

The taxidermied remains of a once-great parrot.

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

A quiet memorial to those who died saving others in the heart of the City of London.

Taxidermied animals galore, by appointment only.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

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

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

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

A friendly pub with a sordid past in cock fighting.

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

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

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

This secluded walkway overlooks a magnificently wild London green space.

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

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."