This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Mai Tais and Navy Grog served up in one of the original tiki bars.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

A modernist landscape of water and sci-fi concrete.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A gargantuan crystal kingdom.

Experience park where visitors are told to expect the unexpected.

An ethereal glowing blue ocean cave in Croatia.

An Aztec snake god has taken the material form of an apartment complex.

A kaleidoscopic warehouse-maze of handmade neon signs.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A winding path built in secret on the edge of the continent.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Macabre astrological automaton clock dating to the late 1400s.

A massive underwater sinkhole made famous by Jacques Cousteau.

A swing to dangle you off the very edge.

These fantastically named natural pools look like something out of a Scottish myth.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

An ancient capital city that dates back 3,000 years old and harbors many surprises.