An eerie, existential museum dedicated to the author of "The Metamorphosis."

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

This small museum is kept in a house that was integral to the genesis of Uncle Tom's Cabin.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

The largest statue in the world towers at 420 feet high atop another 66 feet of pedestal.

This Tang Dynasty behemoth is the biggest Buddha in the world.

A harrowing trail up a mile-high mountain.

These layered sandstone mountains in China look like they are made of pressed crayons.

Snow-capped peaks, colorful waterfalls and stunning vistas on the edge of the Himalayas.

Rock-cut caves and 7,000 Buddhist sculptures carved into the nearly sheer face of a sandstone mountain.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

A toxic ghost town sitting atop a massive coal fire.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Penn State's giant bug collection.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

This massive solar system model is sprawled out across Maine's suburban wilderness.

Sculptures, jams, and the wild west collide at this folksy retreat.

Trinkets and toys lovingly handmade by maximum security prisoners.

Steam engines and conveyor belts are remnants of a genius system left in the middle of the Maine woods.

Former laboratory of radical psychiatrist Wilhelm Reich.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.