Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

An enormous overgrown greenhouse teeming with graffiti and wildlife.

This Great Depression-era creation was once known as the strangest house in the world.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

This park contains a number of standing stones meant to heal and inspire.

Thousands of Matchbox cars spanning generations call this New Jersey barn home.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

Rising out of a clearing in New Jersey's Pine Barrens is an Aztec-inspired monument to the "Lindbergh of Mexico."

A failed piece of Orientalism has become the proud symbol of a community.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

Mysterious rocks that ring musically when struck.

Hundreds of antiquated typewriters and office machinery show the technological evolution of business.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

Destructive children, start your engines.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

One of the oldest log cabins in America is one of the last of its kind this historic Swedish dwelling remains a piece of living history.

Arlington Cemetery exhibit dedicated to death and grieving.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Introducing the Green Fairy to her fawning masses.

An otherworldly musical haven in The Big Easy.