Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

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

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

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The commemorative stone column conceals a secret laboratory.

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

One of London's lost rivers runs through a pipe over the tracks of this subway station.

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

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

This mysterious pyramid is said to be part of a complex web of occult and Freemason symbols.

A vintage media store and safe haven for cinema buffs who love 16mm films shown on vintage projectors.

These marks in Myddelton Passage aren't your run-of-the-mill vandalism, and they weren't made by your typical vandal.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

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

This peeling mural of Adam and Eve was inspired by the greenhouses at Kew Gardens.

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

A remarkable feat of Victorian engineering across the Firth of Forth.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

These fantastically named natural pools look like something out of a Scottish myth.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

This ruined castle is said to be the legendary keep of a Viking princess.