Resting place of Hollywood's immortals is also site of summer film screenings.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

An acoustic anomaly with a mysterious cause.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

A one-of-a-kind collection of a unique medium.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

All that's left of the quintessential "cabin in the woods."

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

These abandoned waterworks are crumbling into the Potomac River.

This private residence was the template for one of the most beloved television homes of all time.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Rome's ancient Etruscan rival, now a park full of ruins.

Walk through a fairytale in Tuscany.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A dilapidated dock tells the story of Titanic's missed arrival.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

This natural spring not only claims to heal the wounded but it has also been willed to God.