The longest hedge maze in the world.

Famously misunderstood wonder of the ancient world

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

A museum marks and documents the site of the Titanic's launch.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

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

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

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

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

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Ship-sized kinetic sculptural fantasy.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

London's smallest police station is barely the size of a phone booth.

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

Eighty million natural history specimens call this gargantuan museum home.

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This tiny 1930s Art Deco airport is a beautiful remnant of a bygone era.