These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

A bronze bust commemorates the heroism of the secret agents who led covert operations against the Nazis.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

The commemorative stone column conceals a secret laboratory.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

The fences outside some of South London's estates are made from recycled World War II stretchers.

Murals of the wild parties once held on the frozen River Thames.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

An architectural oddity hides in plain sight on this iconic London bridge.

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

The ritual has been performed uninterrupted for nearly 700 years.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

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

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

A quiet memorial to those who died saving others in the heart of the City of London.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

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

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

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

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

This one has sailed five times as far as Sir Francis Drake's famous ship.