An 18th-century Spanish watchtower made entirely of seashell and concrete.

A tribute to Ponce de Leon's supposed quest for eternal youth.

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

Off of the Crawfordville Highway in Florida, nature is taking back this decrepit row of Ford trucks.

World's largest magnetic research facility.

This fairytale-inspired cottage was created by a university literature professor.

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

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

This former prison is an Art Deco masterpiece with a past full of civil rights flashpoints.

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

The haunting remains of a failed housing development can still be found behind the big box stores that were to anchor them.