London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

A network of concealed passageways lies within a busy London Underground station.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

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

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

An incarceration museum on the spot of possibly the oldest prison in England.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A unique tribute to the millions of animals who served and died for the British military.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A clock designed to run with perfect accuracy for 10,000 years.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Remnants of a Victorian garden feature sitting in public woodland.