Walter A. Netsch Jr., Cadet Chapel (1959)

Looking more like a space-age battleship than a house of worship from certain angles, architect Walter A. Netsch Jr.’s futuristic temple is an angular assemblage of five-ton metal tetrahedrons, built out of the same aluminum panels as jet fighter wings. Winner of the American Institute of Architects' 25 Year Award and a United States National Historic Landmark, the set of 17 spires might as well be a squadron screaming towards the heavens. 

Photo courtesy David, Creative Commons  Photo 6 of 10 in 10 Inspiring Modern Churches