One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

The ruins of a creative scholar's fantastical unfinished sanctuary act as his massive gravestone.

This protected reserve is home to a rare and beautiful species of flower.

This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

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

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.

Working compound meant to allow visitors to reclaim the values and traditions of the past.

A 1950s eccentric's vision of Eden preserved as a hiking trail.

This historic headstone is said to mark the final resting place of a doubly-dead white witch.

This historic crypt was said to have been designed and built by the very person who is buried inside of it.

This divisive system of turtle tunnels was built to save animals stranded after a highway split a lake in half.

This state park was once an important Native American cermonial center.