One of three sites in England that house the National Collection of Arms and Armour.

This iconic Peak District ridge was once one of the busiest roads in medieval Britain.

The longest and tallest aqueduct in Britain can actually be sailed across.

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

A long-overdue monument to the forgotten British men drafted into the coal mines during World War II.

In an arboretum with hundreds of memorials to the fallen, this one might be the most poignant.

These medieval carvings bear scars left by Parliamentarian troops during the English Civil War.

The house where Charles Darwin's grandfather formed many of his influential ideas and inventions.

In this medieval fish bowl, the carp weren't pets.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

A 15th-century former coaching inn forms the implausibly grand entrance to a 1980s shopping mall.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

This iconic building was founded as a school for the impoverished, but became one for the sons of the local gentry.

This historic streetcar system has been running since the 19th-century.

An eerie collection of the surviving structures from a past celebration of the future.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

Grotto replete with mystical designs laid out in glued shell mosaics.

This forgotten chalk mine was reopened thanks to a massive effort from the local community.

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