File:WrightPPCCScheme1.jpg

Summary
An image of the Pittsburgh Point Park Civic Center design by American architect Frank Lloyd Wright (1947).

Licensing
I claim fair use in the article on that topic. There are zero free images extant. Only one image of each scheme for the project is used.

Source: Cleary, Richard L. Merchant Prince and Master Builder: Edgar J. Kaufmann and Frank Lloyd Wright. Pittsburgh: Carnegie Museum of Art, 1999.