These morbid carvings remind churchgoers of the inevitability of death.

Black cat statues guard this temple-like Egyptian revival factory.

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

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

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

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

A relic of Victorian grandeur hides beneath a busy South London road.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

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

This small collection of rare books was uniquely locked up for safe keeping.

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

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

Once a train station along the Great Eastern Railway this vibrant coffee shop and bar is where members of London’s creative class mingle.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Two plaques commemorate the site of Shakespeare's first theatre.

London's largest outsider art museum.

Charles Babbage's proto-computer, painstakingly brought to life.

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