Elvis's own personal tropical hideaway.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This Arkansas town is known for its gangster history, its healing waters, and now its brews.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

It's said this was once the home of King James V's pet lion.

A unique bridge with an equally unique view.

These formal gardens were designed to be admired from the vantage point of the castle.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

Amazingly, this old machine within the Resorts Casino still functions.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

It's beautiful, it's haunted and its claim to fame is that it's the oldest existing stone arch bridge in Australia.

The oldest military monument in the United States.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

Take a step into the workshop where Edison and his employees revolutionized the world.

Thomas Edison's home and final resting place also boasts an impressive garage, where some of the earliest electric cars are on display.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

A remarkable feat of Victorian engineering across the Firth of Forth.

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