This old-fashioned carhop restaurant gave the world the waffle cone.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

This abandoned factory on the Hudson River once churned out a million bricks a week.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

These eerie outliers of the lightning bug family glow a mysterious blue color.

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

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

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

Railroad came. People came. Railroad left. Town died.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

This historic mansion was built as a symbol of love between a husband and wife.

Hop on the train and tour an elaborate miniature town made completely of junk (including the train).

The highest point in Virginia can only be reached by passing through ponies and flowers.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.