Stock up on all your horror paraphernalia at this year-round Halloween emporium.

A reproduction of earth's many biomes.

An off-the-beaten path cave with an underground lake.

Legend says train robbers stashed their gold within the depths of this unusual cave.

A multiversal transit station located right below a highway interchange.

An amazing collection of model trains, collectibles, and artifacts that span the last 100 years.

A natural history wunderkammer in the middle of the desert.

The fading, forgotten remains of a once bright and booming factory.

See massive fossils that are over 200 million years old in northeastern Arizona.

"I did this all while you were watching TV."

A clear blue swimming hole with hidden caves, still unexplored.

A 6,888-carat piece of turquoise that bears a striking resemblance to the first President of the United States.

The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

Experience the glam side of air travel without leaving the ground at this speakeasy.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.