Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

These eerie outliers of the lightning bug family glow a mysterious blue color.

The easiest way to the highest point in Wyoming is only accessible via one hefty fee.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

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

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

Covering 37 subterranean acres, this Armillaria gallic is a famous fungus with its own festival.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

Roaming bison and a spectacular view at the highest point in Nebraska.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

The highest point in Virginia can only be reached by passing through ponies and flowers.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Georgia's highest point was given its strange name thanks to a simple translation error.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The highest point on the island known for buildings that touch the sky.

A modernist landscape of water and sci-fi concrete.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

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

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.