Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

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.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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.

This Native American settlement dates back to the Pueblo II period.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

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

The first declared National Monument in the United States.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

This natural marble cave is one of only five national monuments in Oregon.

A vertically floating hemlock controls the waves and weather at Crater Lake.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

10,000 flowered plants bloom in the City of Roses.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Tacoma’s 25-foot coffee pot music spot has served up over 80 years of concrete kitsch.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

The highest point in Washington state is a volcano covered in glaciers.