This park contains a number of standing stones meant to heal and inspire.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

This abandoned nuclear cooling tower casts a shadow over a bucolic town.

A 70-foot replica of the famed Eiffel Tower.

A natural sandstone bridge hidden in the Sewanee forest.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

Abandoned for 60 years, this submerged bridge was completely forgotten until the lake was drained.

These early tent-shaped grave coverings are unique to Appalachia.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

The first full-scale tunnel built in America is short but scenic.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

Live long and prosper in Tennessee.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Mile-long cave system near Great Smoky Mountains.