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

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

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

This overlooked street light once served as a KGB dead letter box.

The secret wartime bunker built on the platforms of an abandoned Tube station.

A statue of the original Pearly King is hidden in a church's crypt.

A wellspring of creativity in an already artsy East London neighborhood.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

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

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

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

Home to the unidentified remains of the 1979 Mt. Erebus Disaster.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

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

A display of everyday life in the area that was unveiled during the 2012 Summer Olympics.

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.

Likely the first car with an internal combustion engine constructed in the United Kingdom.

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

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

The Origin of On the Origin of Species.