Catacombs turned marketplace.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A sweet symbol marks the place where torturous executions were once carried out.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A scattered trail of street art adds a pop of color to the city's stark structures.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

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

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

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

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

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

This overlooked street light once served as a KGB dead letter box.

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

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

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

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