Solar flare Intermediate 11/20/2014 Grain storage silos Intermediate 11/18/2014 Wind turbine 1888 Charles Brush Beginner 10/30/2014 Albert Einstein Beginner 10/27/2014 Devil's bridge Beginner 10/16/2014 Cologne Cathedral 08/18/2014 Indian pigments Intermediate 08/11/2014 A Zeppelin over New York City, 1933 08/11/2014 Paro Taktsang Advanced 08/07/2014 Pont de Bir-Hakeim and view on the 16th Arrondisse Advanced 08/05/2014