These former ticket office windows in London's underground now house pocket-size parks.

A network of bells in the pubs and restaurants around Westminster alerts politicians when it's time to cast their votes.

A cluttered and astounding collection of antiquities and curiosities.

This cul-de-sac off Fleet Street is said to be the place where the infamous Demon Barber made a killing

This Underground station has been a popular filming location for decades, even before it closed.

Nestled in the Sussex countryside are a handful of obscure, seemingly purposeless buildings constructed on the whim of a flamboyant slave owner and local politician

The world's first purpose-built motor racetrack was destroyed by the outbreak of two world wars.

Amazing collection of folly buildings in Cobham, Surrey.

This five-story sentinel is the sole surviving semaphore tower in Britain.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

Hidden in plain sight on a gable between two towers on the roof of shipping firm F. Laeisz' headquarter in Hamburg sits an unexpected bronze sculpture.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

Carved scenes of sex work and unglamorous labour beneath a cultural hero.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

Multiple versions of this horned sculpture, tied to local legend, have been stolen over the years.

Hamburgers are intensely proud of their tunnel beneath the river.

Model Trains and Much More in Hamburg.

A wunderkammer of exoticism immortalized by Tom Waits.

Elevated brass pavilions form a kaleidoscope of fragmented views of the surrounding historic cityscape.