This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

In 1952, this restaurant began selling the Colonel's “secret” recipe.

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The trials and tribulations of marking Poe’s grave.

This abandoned cemetery has a dark past of bodies buried over bodies.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Irontown was founded in 1868, as a second attempt to mine iron from the nearby Iron Mountain.

Built at the turn of the 20th century, using bricks made and fired from clay found on the property.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

Opened in 1911, this small shop is the oldest ongoing establishment in St. George.

Although it also features red, orange, and variegated cliffs of Navajo Sandstone, this state park is often overshadowed by its more famous neighbor.

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

An unprepossessing storage reservoir in southern Utah has a checkered past.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.