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

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

A much-loved local landmark pays tribute to the shipbuilding past of this area.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

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

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

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

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

Look up from the busy streets to discover how time is kept!

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

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

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

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

Ship-sized kinetic sculptural fantasy.

Its collection includes a broad array of social, geographic, graphic design, and political history.

Glasgow's oldest pub has a proud literary tradition and possibly a ghost or two.

A scattered trail of street art adds a pop of color to the city's stark structures.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A small collection of objects of a bygone era hide in plain view.