This memorial to the thousands of Indian dead during WWI was callously used for target practice during WWII.

Tucked between a side street and a theater, this arch once led to a prestigious riding school, and now opens to a courtyard and community garden.

A private selection of curiosities, carefully curated by a young Brighton local.

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

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Where condemned pirates met their grisly end at the gallows on the River Thames.

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

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

An unassuming churchyard is the resting place of a pioneering surveyor and reluctant namesake of a mountain.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

Eighty million natural history specimens call this gargantuan museum home.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

Now isolated, this church was once the center of a bustling village that succumbed to the Black Death.

Hidden beneath the streets of London is a secret subway that only carried mail.

A student driver's nightmare.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

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

The plaques around this 19th-century structure recall some rather strange tales.

Legend says the people of Wiltshire got their "Moonraker" nickname from this small pond.

The only pub in the world surrounded by an ancient stone circle.

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

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

Go deep down into the earth to experience the world of Welsh coal miners.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.