The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

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

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

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

This London plaque marks the spot where David Bowie's famous alien made his debut.

London's old-school healing garden.

Abstract dinosaur models in London.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

A historic arboretum and non-conformist, non-denominational park cemetery.

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

The remains of Crystal Palace Great Exhibition of 1851.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Remnants of a Victorian garden feature sitting in public woodland.

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

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

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

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

Rebuilt remains of a temple to Roman god Mithras.

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