This Western town in northwest Arizona is overrun by burros descended from the pack animals miners brought to the area during the 1800s. The burros are as much a tourist attraction as the city's ...

Meteor Crater was created more than 50,000 years ago by a massive meteor strike near Winslow, Arizona. Visitors can experience the 550-foot-deep and nearly mile-wide cavity from an air-conditioned ...

Around 900 years ago, a volcano – which has come to be called Sunset Crater – erupted and transformed the encircling area. Geologic features like cinders, lava rock and lava flow compose this ...