Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

A historic freight system that found the true gold rush is in tourism.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

Gorgeous cave resemble a winter wonderland.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A World War II gun battery sits at the easternmost point of North America.

Twice a day, the water of the Petitcodiac River flows upstream in a surfable wave.

The water swaps direction twice a day, whipping into a frenzy of whirlpools and rapids.

A rare opportunity to drive across the ocean floor.

This mill on Lake Erie appears to shrink as a viewer approaches thanks to an optical illusion.

The world's longest covered bridge is a quaint and incredible wooden tunnel.

The most northerly active sand dunes in the world have some very rare botanical residents.

The half-mile long structure is so impressive, it even shows up on satellite images.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.

Every fall this lake mysteriously drains, like a bathtub with the plug pulled out.