This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

William Faulkner kept his beloved estate wild and untamed.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

This historic bridge has weathered fires and floods and still stands, now abandoned, where it has stood since 1874.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

The Ozarks' strangest dwelling.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

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

The site where Confederate president Jefferson Davis was defeated has been marked with a bust... that leaves that part out.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

Death comes to anyone who dares to touch this concrete column.

HFH's slum simulation is either a noble recreation of poverty or a cringeworthy attempt at same.

This historic oak tree has been around for over 300 years and might last for 300 more so long as it doesn't fall apart first.

A beautifully detailed Victorian house designed to be easy to flee, built by a man haunted by fire.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

Georgia's first brewery is also one of its oldest surviving buildings.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

This stone is a marker of one millionaire's personal vendetta against gravity.

This small cemetery is all that remains of Atlanta's first Black communities.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.