Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

A historic grist mill and active sluice on the Black River.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

A world-class collection of mechanical musical instruments and automata.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

One man's lifelong obsession with death.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

A recently abandoned psych ward at the end of Sanatorium Road.

Series of storm drains connected to a dark urban legend.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

A unique sculpture park that specializes in the huge and bizarre.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

A free, canine-friendly alternative watering hole near the more famous Barton Springs.

This stone windmill marks an old, mysterious homestead in what is now central Austin.

A small island hides in plain sight on Austin's Lady Bird Lake.

Some islands... they come, they go, especially on Lake Travis.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.