Putting the "mod" in "modular" since 2000.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

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

An archive of ceramic eggs painted to record clowns' personal makeup designs.

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

Its collection includes a broad array of social, geographic, graphic design, and political history.

A historic hill of tall tales, with one rather special tree.

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

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

A measuring mishap led to these artificial stone ladies losing their stomachs.

The Tudor-style cottage in the middle of the square is not quite what it seems.

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

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

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

The ritual has been performed uninterrupted for nearly 700 years.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

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

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

A memorial to a dog that inspired rioting in the streets of London.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

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

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."