The once secret paintings of Hilma af Klint are a revelation both for their beauty and for highlighting the impact of spiritualism on how artists see the world.

Sunrise through the trees on central Iowa farm

Albia, Iowa, USA, September 1882

Eastern Iowa sky, November 2015. By P. Grady

Marston Hall, Iowa State University

Iowa State's Jadda Buckley goes for a lay up around Iowa's Ally Disterhoft (2), Melissa Dixon (right) and Theairra Taylor (back) during first half at Hilton Coliseum on Thursday, Dec. 12. Photo by Nirmalendu Majumdar/Ames Tribune

Iowa State's Emily Durr drives to the basket around Kansas' Jada Brown and Timeka Brown during the fourth quarter at Hilton Coliseum Sunday, Jan 8, 2017, in Ames, Iowa. Photo by Nirmalendu Majumdar/Ames Tribune http://www.amestrib.com/sports/20170108/women8217s-basketball-cyclones-cruise-by-kansas

Living History Farm, Iowa

Iowa State's Sherron Dorsey-Walker puts in a layup over Viterbo's Austin Poehls during the first half Friday at Hilton Coliseum. Photo by Nirmalendu Majumdar/Ames Tribune

Lucy Olsen

Albia, Iowa, USA, March 16, 1882

Salix, Iowa