It's possible to walk inside one of the largest Neolithic tombs in Britain.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

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

Rippling sand dunes frozen in the Arizona rock.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The trials and tribulations of marking Poe's grave.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The king of U.S. high points towers over every other peak on the continent.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

One of America's most historic homes also holds a startling literary legacy.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

A unique geological area spiked with wind-carved rocks that resemble teepees.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

There's nothing creepier than a cemetery next to a clown motel.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Fantastic collection celebrating the final send-off.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

A lonely beacon, precariously perched atop a remote sliver of rock.

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

Massive mounds of golden sand look like a desert landscape randomly plopped in an Arctic forest.