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.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The final resting place of a legendary science fiction author and his fraternal twin sister who died as an infant.

See where Bill Murray kidnapped a hapless Punxsutawney Phil.

999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

A common entry point to the Griffith Observatory trail holds its own wonders.

Oldest building in California still in use.

This Pringle-shaped ledge makes for the perfect photo op.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.