The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

Bizarre Cavern.

Remnants of a storybook amusement park hidden behind a strip mall.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

A priceless collection of the Nation's cryptologic history.

A fantastic array of trays and cables once whisked books over to the Capitol at 600 feet per minute.

Home to a vast and influential collection of Shakespeareana.

Eighteen miniature death-scene dioramas.

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

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

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

When it opened during the final years of the embargo, all the drinks and cigars were free.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

FDR hoped to find a cure for polio in this Georgia town's warm springs.

Bad farming practices caused this unnatural natural wonder.

This folk art compound was built by a fortune teller on the advice of three people from the future.

Georgia's highest point was given its strange name thanks to a simple translation error.