Alexander Hamilton’s creation caused quite a bit of controversy.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

Yo, Adrian!

An enormous illuminated figure dances on the Las Vegas strip.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

This one-time health resort was used by aristocrats around the world.

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

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Dive bar built out of the remains of a whaling ship.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

The first safe in this California town had to hold all the gold.

Fake rail crossings mark the site of an influential doctor's demise.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

A strange house built only at night, with rumored mystic inspiration.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

A land of debatable treasure.

"Only the devil could play golf here."

The location of the last stand of Charles Manson's doomsday cult.

This old mining town, deep in the California desert, has a year-round population of one.

An artsy hidden staircase leads to breathtaking views of San Francisco.