One man has spent decades faithfully constructing this unique brick and cinderblock castle.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Conjoined twins Daisy and Violet Hilton were stars of the vaudeville circuit.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

A small sculpture garden that provides a microcosmic representation of California.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

Over 4,700 miles of trees being planted to hold back the desert.

The first plantation museum in the United States to focus on the lives of enslaved people.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

A controversial art piece that harkens back to local folklore.

An easy-to-reach, century-old shipwreck in shallow and crystal clear waters.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

The ruins of this Alaska gold mine form a gorgeous ghost town.

A small "palace" and museum made of, and devoted entirely, to salt.

255 feet of suds, scrubbers, and blow dryers.

A mysterious drive-in nestled in the forest that leaves little to the imagination.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

This micro-nation may be some sort of prank, but its constitution sure seems official.

This small island declared independence from South Korea in the hopes of attracting tourists.

A chilling monument to Korean patriots who resisted the Japanese occupation.

This odd museum/art gallery embraces the physiological, zoological, and ethnographic side of sex.

South Korea's only sex-themed park.

South Korea's largely symbolic, barely used gateway to the North.