A volcanic core jutting above the plain between the Snake and Boise Rivers, a marker identifies the reference point for all U.S. Government Surveys in Idaho.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A vast collection of rare, historical, and vintage supercomputers.

A volcanic landmark located on an Ice age lake bed.

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

The second tallest railway trestle bridge in America.

At the time of its completion, it was the tallest dam in the world.

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

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A new kind of theme park for adults off the Las Vegas Strip.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

A tunnel with windows, so you don't miss out on the impressive views.

Thousands of years of crashing waves gave this mushroom-shaped rock its svelte figure.

An intricately carved Viking church overlooks a glistening fjord.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

Ruins of two abandoned stations destroyed by the power they sought to harness.