By Niccole Kowalski | Meteor Crater Natural Landmark, Winslow, AZ

By Mark Noonan | Gary Indiana Lake County

By Sheryl R Garrison | Southern Alberta, Canada

By Peter Lowenstein | Mutare, Zimbabwe

By Randall Sackerson | Evergreen, Colorado USA

By Jack Pope | Georgetown, Kentucky, USA

By Brian Henson | Modesto,CA

By Janet DelTufo | Carson City, Nevada

By Idriss Dhoparee | West London, United Kingdom

By Idriss Dhoparee | West London, United Kingdom

By Idriss Dhoparee | West London, United Kingdom

By Idriss Dhoparee | West London, United Kingdom

By Evan Brorby | Tuscon, AZ - Mt. Graham

By Evan Brorby | Tucson, Arizona - Mt. Lemmon

By Deirdre Horan | Dublin, Ireland

By Darby Crowley | Boston, MA USA