This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

A former telephone box found new life as a photo booth and charity fundraiser.

The location of a citizen uprising that led to a gruesome act of mob justice.

Small sculpted heads of prominent phrenologists mark the outside of their former headquarters.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

This monument is dedicated to a young boy who survived a disaster that forced Edinburgh to reevaluate its building codes.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

This early version of the guillotine was used to execute the man responsible for its construction.

These tiny effigies are believed to represent victims of Edinburgh’s notorious Anatomy Murders.

A public art installation with a nautical themed poem, enhances this pedestrian street.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

Tucked away in a London Tube station, this 1920s linear clock shows the time across the world all at once.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

A British plaque explains that a house was built using the spoils of the first international golf bet.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

Preserved behind glass, the ruins of a medieval building used to store human remains.

This hand-painted advertisement is a literal sign of encouragement, however unintentional.

These once housed the families who decided in 1665 to quarantine themselves to save their neighbours.