Where America's first doomsday cult awaited the end of the world.

World's first "penitentiary," meant to be humane, drove men insane.

A chance to sleep among the firs and pines of the Oregon forest.

Only known mainland rookery of the threatened Stellar sea lion.

The longest continuous lava tube in Oregon.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

An acoustic anomaly with a mysterious cause.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

The angel of death appears to weep black tears at this grave marker.

This simple badlands butte is the highest point in North Dakota and may be the only high point to charge admission.

The world's largest Holstein cow.

A monument to the center of the North American continent may be off by a few miles.

Three legendary, living albino buffalo roaming their pastures for all to see.

One man's quest to save his town with a trail of record-breaking sculptures.

This historic stone barn is the former home of legendary cattleman Charles “Lonesome Dove” Goodnight.

This marker identifies the location where three states converge.

This massive home was constructed by one of the greatest conservationists in Colorado history.

According to local legend, a tree grew from the stake that killed this alleged vampire. In reality, he probably died from influenza.

A tiny nondenominational church harkens back to the days of the first homesteaders in the region.

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

Birds with backpacks expedite film development for a rafting company on a remote Colorado river.

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

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.