Arenal, Costa Rica

Onondaga Cave, Missouri

Snow on Sandstone Monocline, West of Kayenta, Navajo Nation, Arizona

Perseid Meteor Shower - Mount Teide National Park, Canary Islands

Bungle Bungles, Western Australia

Honokohau Falls, Maui, Hawaii

The sun setting over a wildflower field at the base of Mt. Rainier in Grand Park

First snow of the season today at the Maroon Bells - Aspen, Colorado

An ancient tree on the rim of Oregon's Crater Lake at twilight

Great Falls, Virginia

Glacier National Park, Montana

A lake in the Uinta Mountains, Utah

Badlands, SD