This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

On a wall in linear London, a plaque hangs at the high water mark of one of the worst floods in fictional Kcymaerxthaereal times.

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

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

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

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

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

A unique tribute to the millions of animals who served and died for the British military.

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

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

The tomb of the mythological founder of Padua is not hidden in some obscure crypt, but stands right in the middle of the city square.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

The astonishing collection of an infamous criminologist.

A fake medieval village in the middle of Turin.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.