These 19th-century gas tanks were remade into an apartment complex.

A hands-off space for graffiti artists to hone and display their skills.

These enormous concrete blocks played a vital role in one of history's most important days.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

According to legend, this tomb holds the secrets to time travel.

The extra platform at Gloucester Road has been used for art displays for over 25 years.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This 500-meter-long memorial pays tribute to the hundreds of thousands of lives lost to COVID-19 in the UK.

Prank chair from an 18th-century Danish royal court shows the eternal popularity of fart jokes.

Amid the ruins of a church on the British island of Portland, a surprising symbol among the headstones.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

This sprawling, Brutalist estate feels like a city within a city.

This monument marking the center of Mexico might be more political than geographical.

The ruins of an ancient pyramid built by the mysterious Chupícuaro civilization.

When struck, the strange stones in this park ring like bells.

It was dubbed the "Garden of Plates" because it's covered in pieces of discarded dishes.

This historic Mexican convent is home to a tree that grows crucifix-like thorns.

After it was missing for a decade, this 40-foot statue of Our Lady of Guadalupe was found and returned to a place of honor—with a little help from a tropical storm.

This 1920s masterpiece of French Quarter architecture hides a secret tunnel used by Albert Einstein.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

The lead horse on a Disneyland merry-go-round that is older than the park itself.