The first integrated firehouse in Atlanta houses a museum on the history of desegregation in the city's fire department.

An underground magnet for ever-changing street art.

Georgia’s last drive-in movie theater is a relic of a bygone era.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Cozy basement bar sports an inventory of over 2,000 beers.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

The mirrored section takes the shape of Hebrew characters when viewed from above.

This WWII plane died a quiet death, and is now a garden eel playground.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

A roundabout in the West Indies that pays tribute to a bus driver who brokered no-nonsense on the school route.

An unexpected must-see for fans of Star Wars who find themselves on the beautiful island of Sint Maarten.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

Where Saint-Martin ends and Sint Maarten begins (or vice versa).

This colorful gate stands as an entrance to the walled city of Old San Juan.

There’s a hidden military meme engraved on the World War II Memorial.

Decades before the scandal, this staircase on the river was a literal "water gate."