This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

This historic castle is one of the oldest and most impressive in all of Japan.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A different Edgar Allan Poe built this charming Victorian home.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

Over the last century, this elegant columned facade has been home to the headquarters of a bank, several nightclubs, and a restaurant.

Disks are rolled out onto the south lawn to absorb the impact of Marine One's wheels like giant coffee coasters.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

King of the Saxons on top, Roman goddess of wisdom on the bottom.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

The "All-Seeing Eye of God" symbol on this library is a clue to one of the many former lives of this building.

These elaborate gothic monuments honor Verona's medieval lords.

This monumental fountain has moved around the city multiple times.

Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

Disused for decades, this freight railway bridge is finally being renovated into a scenic promenade.

The historic villages and towns of Suffolk are filled with wonky wooden beam houses painted an unusual shade of pink. Unknown to many though, this sweet shade has a bloody history.