North America's largest accredited model railroad museum.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

This massive solar generating facility in the Nevada desert has been plagued by difficulties.

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

Step back in time on this preserved 1800s farm.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.