Dine amidst exotic plants at this former royal greenhouse.

Ancient serpentine sacrifice holder that has stood the test of time.

A marvel of Byzantine engineering under the streets of Istanbul.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

A fountain standing as a testament to a doomed alliance.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

This Indianapolis landmark offers a secret panoramic view of the city. 

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A plaque on the side of a parking garage marks the burial place of a great Ottawa chief.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

A winding district gerrymandered into the shape of a mantis.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

This relief sculpture depicts America’s most famous coffee break.

Before he was "Bob Marley, international reggae superstar," he was "Donald Marley," a Delaware resident and forklift operator working under an assumed name. This park tells the story.

The site of a tragic massacre that spawned a multimedia franchise.

A cemetery that holds graves for the forgotten children of a burned orphanage.

A monument to a survivor of harsh pioneer life, frostbite, and primitive surgery.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A late-19th century diversion canal built by hand crosses Bryce Canyon National Park and is still in use.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.