Richat Structure (Eye of the Sahara)

Aurora Borealis - Mo i Rana, Norway

Koko Head (Kohelepelepe), Oahu, HI

Bonavista, Newfoundland, Canada

Caddo Lake, Texas

Topanga Canyon, California

Colorado River, Dead Horse Point State Park

Mackenzie Basin, New Zealand

Tosua Ocean Trench, Lotofaga, Samoa

Isla Mujeres, Mexico

Stormy skies in Dublin, VA

Engelberg

Dean's Blue Hole, Long Island, Bahamas.