The final resting place to 300 Victorian-era pets hides inside the city park.

Banksy gives themself artistic license with this piece of London street art.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

A moving memorial to the fallen and missing from WWI trenches.

Remnants of a Victorian garden feature sitting in public woodland.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

Pop culture has helped to keep this iconic British building from being destroyed.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

An unusual round church in London with a Templar past.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Hidden beneath the streets of London is a secret subway that only carried mail.

The taxidermied remains of a once-great parrot.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

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