South Africa's postal service began with a letter left in a boot beneath this tree.

The oldest inn in England served brew to the crusaders.

One of America's first spies started out as a teacher in this little red one-room schoolhouse.

Whether they are bulls or pigs, these ancient animal sculptures are fascinating relics.

Two 2,500-year-old Phoenician boats found on the coast of Spain, giving incredible insight into the ancient maritime traders.

American involvement in World War I officially ended in 1921 in New Jersey, three years late and thousands of miles from the battlefield.

It's a pretty creepy lock-up.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

This 13th century castle is chock full of ghosts and impossibly rare cows.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

This 14th century wine cellar is home to the oldest barrel-stored wine in the world.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

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

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

These quaint French houses dangle precariously over a precipice.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

Thousands of well-dressed mummies below a monastery.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

The North Carolina grounds are leased in perpetuity to the British Commonwealth for as long as the WWII sailors are buried there.