World's first "penitentiary," meant to be humane, drove men insane.

The resting place of a Civil War celebrity's amputated limb.

Step inside Lucy, the world's largest "elephant."

This landmark cemetery in Boston was created more than 300 years ago.

Pop culture has helped to keep this iconic British building from being destroyed.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

Largest lake in Great Britain measured by surface area.

Fascinating town where normal life interfaces with the occult.

The celebrated eyesore created by starry-eyed sweethearts.

The site of Paul Revere's historic two lantern warning.

Dictionary Johnson’s favorite feline.

Yo, Adrian!

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Dr Barnes' $25 billion private collection of art and arboretum.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.