Rebuilt remains of a temple to Roman god Mithras.

Murals of the wild parties once held on the frozen River Thames.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

This historic London residence was once the womb of Scientology.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

Traveling collection of amazing automata.

An unusual round church in London with a Templar past.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

The anatomical-pathological collection of a man who changed surgery.

A cluttered and astounding collection of antiquities and curiosities.

One part local history, 99 parts gruesome haunted house.

A mysterious artist-run cabinet of curiosities and library.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A naturally mummified 2,000-year-old man.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

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

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

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

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

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

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

Several plaster noses are hidden in plain sight around London's Soho neighborhood.