Strange red rock formations that have been attributed to a higher power for hundreds of years.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The fairy tale castle of the "fairy-tale king."

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Carved fountains poignantly placed in parks and in front of special monuments.

A beautiful final resting place for some of the noteworthy deceased.

A museum dedicated to the history and exploration of both popular music and science fiction.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A mysterious taxidermy man-beast of the seven seas.

Few other hotels can rival the grandeur of the Castle in the Rockies.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

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

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

A giant 400-acre preserve in North Florida for displaced wolves.

Ancient church constructed with a special wood that preserves prints from the past.

A humid oasis combines recreation with exploration in a unique underwater cavern.

Monument to the cotton-destroying boll weevil.

A haunted hill that supposedly defied gravity.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.