09-15Artist Jesus 'CIMI' Alvarado painting his mural 'Fronterizos' on a wall of the El Paso Museum of Art, El Paso, Texas - Paul Ratje/AFP via Getty Images)
09-14Aldeyjarfoss waterfall in northern Iceland's interior landscape - Jim Patterson/Tandem Stills + Motion)
09-13Aerial view of the Venice Skatepark in Venice Beach, Los Angeles - Ingus Kruklitis/Getty Images)
09-11US flag on part of a 9/11 memorial overlooking the New York skyline from Exchange Place, Jersey City, New Jersey - Gary Hershorn/Getty Images)
09-06Park service employees inspecting Mount Rushmore National Memorial, South Dakota - Universal Images Group via Getty Images)