The poet Walt Whitman was a frequent visitor to this spot, the highest on Long Island.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

Conspiracy theories and occult legends surround this mysterious natural rock formation.

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

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

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

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Long before the Battle of Gettysburg occurred, dinosaurs roamed the area and left their footprints on this bridge.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

A futuristic-looking beach house built for the owner of a snack food brand.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

Once the path of a railway tunnel, now home to thousands of glowing insects.

Bioluminescent firefly squid light up this Japanese fishing port.

Australian Lake set aglow by Noctiluca Scintillans.

You can spend the night in Dr. Frank-N-Furter's castle.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

On a corner of the Ardmeanach peninsula on the Isle of Mull, a 50 million-year-old fossil tree hides in the coastal cliffs.

Outsider art meets paleontology at this roadside reptile repository.

The Cadillac Ranch for monster truck aficionados.

The location where the American Revolution ended.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Colorado's only active volcano last erupted around 4,000 years ago.