Hidden beneath the streets of London is a secret subway that only carried mail.

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

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

The remains of the great moral philosopher reside in a university in London.

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

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

A building that survived WWII, possibly on the virtue of its name alone.

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

Eighty million natural history specimens call this gargantuan museum home.

Pop culture has helped to keep this iconic British building from being destroyed.

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

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

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

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

This home on a quiet suburban street is completely covered with vibrant mosaics.

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

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

A little slice of Japan and its aesthetics in London's Holland Park.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

The bronze uniforms commemorate the vital role of women during World War II.