This bronze statue was dedicated to a 1966 Beatles hit.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

The rusting relics of Southampton's former luxurious flying boat industry.

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

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

This 700-year-old storehouse was a POW jail, aviation workshop, and Titanic memorial before becoming a brewpub.

Many mysteries surround these objects questioning whether they are cannonballs at all.

A cemetery housing wild west legends in South Dakota.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

This feature of the city's aqueduct has achieved numismatic fame thanks to its appearance on Mexican banknotes.

This colonial-era hospital chapel is now a foyer and side entrance to a popular department store.

The winter home of millions of migrating monarch butterflies.

This lonely tower survived the landslide that devastated much of a Mexican mining town.

A sobering scientific reminder of the human damage caused by the advent of the nuclear age.

Although it has never been a secret ninja base, this shrine still has plenty of tricks up its sleeve.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

This restored opera house is named after a soprano known for tragic romance, exile, and a truly uncomfortable wedding.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

The ancient latrines of the Greeks, in all their public glory.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.