Take a steam-powered ride straight out of the past on this Appalachian rail line.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

America's post-nuclear-attack chambers of Congress.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This abandoned amusement park was built on a site with a dark history.

Complex aquaponics systems allow fish and plants to grow in harmony.

This supper-club-turned-concert-venue still serves drinks at its original rotating bar.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

Once part of an extensive network of fire towers, this is one of the few remaining in this Wisconsin forest.

Picturesque and haunting, these 160-year-old stone ruins on top of a bluff are the only remains of a settler's legacy.

Built by an accountant with a dream of running a grand resort, this estate has sat vacant for over half a century.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

Built in 1933, this unique ballroom is nicknamed the "floating dance floor."

Where experiments are conducted on all things wood.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

This odd-shaped relic from the 1964 New York World's Fair found its way back home to Wisconsin.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.