A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Enormous lake at the bottom of a unique cave system.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

This large midwestern cavern features impressive rock formations and an underground waterfall.

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

Bad farming practices caused this unnatural natural wonder.

On the edge of the Valles Caldera National Preserve, these rock formations create an eerie landscape.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Community owned and operated, this property is home to a diverse set of nudists.

One of the most unusual geological features, recognizable from a dozen hit movies.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

Home to a timed geyser created by complete accident.

The rocks in this arid basin leave trails of movement behind them.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

"Only the devil could play golf here."

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

A little-known hot spring haven right below the highway.

Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.