Thorncrown Chapel is a chapel located in Eureka Springs, Arkansas – designed by E. Fay Jones and constructed in 1980. The design recalls Prairie School architecture – popularized by Frank Lloyd Wright, with whom Jones had apprenticed. Jim Reed, a retired schoolteacher, commissioned the chapel. Constructed mostly of wood and other materials indigenous to northwestern Arkansas, the design minimized material transportation costs. Though giving the impression of an open-air structure, the chapel is a glass-enclosed, conditioned space.
The building was selected for the 2006 Twenty-five Year Award by the American Institute of Architects, recognizing structures that have had significant influence on the profession. The chapel was listed on the National Register of Historic Places in 2000 Buildings less than fifty years old can only be listed on the Register if they are of exceptional significance.