A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

Banksy's image of a naked man dangling from the window of a sex health clinic.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

This skewed English house has looked like it's going to fall over for centuries.

England's most famous front door has an accidental doppelganger.

The broken skateboards that became a poignant memorial to a murdered skater.

The last four extravagant street signs of London's historic banking street.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

A famous burial ground with a history both grim and literary.

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

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

Giant, friendly pelicans in Central London, the most unlikely of places.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

A hands-off space for graffiti artists to hone and display their skills.

A student driver's nightmare.

A special train service transported Sydney's dead from this station to "Necropolis Receiving Houses" at Rookwood Cemetery.

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

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

This sculpture, residing in a quiet corner of a London park, honors the victims of 9/11.

London's Victorian Tower of Babel.

The Great Fire of London and the regulation of one-way streets both started in this alley.