The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

A bronze bust commemorates the heroism of the secret agents who led covert operations against the Nazis.

A hands-off space for graffiti artists to hone and display their skills.

Tucked inside a South Bank bar is an epic expressionist chronicle of the 20th century.

The broken skateboards that became a poignant memorial to a murdered skater.

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

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

A series of carved figures that scandalized British society.

The world's oldest family-run magic shop is hidden beneath a bustling London thoroughfare.

A living memorial to the trees London lost during the Great Storm of 1987.

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

William Smith's iconic "map that changed the world" is hidden behind a curtain in the Geological Society building.

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

Rebuilt remains of a temple to Roman god Mithras.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

Charles Babbage's proto-computer, painstakingly brought to life.

This museum inside a museum tells the story of London's timepieces.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

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

A tribute to an explorer and naturalist often overlooked by history.

The bones of two medieval royal lions were discovered at the historic fortress.

Repository for more than 22 million pickled specimens.

This luxury shopping lane has been protected by its own tiny police force for over a century.

A plaque marks the underground site of one of London's "lost rivers."