This historic building displays the remains of a victim of the devastating 14th-century plague.

The plunge pool is a surviving relic of a rowdy royal residence.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

A relic of Victorian grandeur hides beneath a busy South London road.

There's an exclusive Beefeaters pub hidden in the Tower of London.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

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

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

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

Artists and musicians now rule over this former rail station.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This 1920s Dutch barge is now a floating bookstore.

The television series' iconic giant foot was borrowed from this classical painting.

Scattered throughout London are ancient remnants of the city's former bounding wall.

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.

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 vast overgrown cemetery, once known as one of London's "Magnificent Seven."

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.