Half of a waterfall goes into the river while the other half seems to disappear.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Dig for your own trilobites in this goldmine of invertebrates.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

A hidden beach at the end of a tunnel of mangrove trees.

A taste of Middle Earth, in the middle of the Bayou City.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

Bad farming practices caused this unnatural natural wonder.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

148 feet long and in the middle of a verdant forest.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

Visit this playground of waterfalls, caves and sinkholes.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

This edible park is open to any and all foragers.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

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

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.