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

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

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

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

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

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

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

A Roman spa buried deep beneath the City of London.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

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

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

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

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

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

The fences outside some of South London's estates are made from recycled World War II stretchers.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

It's a mystery why these remains were found with no traces of their bodies in sight.

Where condemned pirates met their grisly end at the gallows on the River Thames.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.