The Propylaeum, also known as the John W. Schmidt House or as the Schmidt-Schaf House, is a historic home and carriage house located at 1410 North Delaware Street in Indianapolis, Marion County, Indiana. The Propylaeum was named after the Greek word "propýlaion," meaning "gateway to higher culture." The property became the headquarters for the in 1923, as well as the host for several other social and cultural organizations. It was initially built in 1890-1891 as a private residence for John William Schmidt, president of the Indianapolis Brewing Company, and his family. Joseph C. Schaf, president of the American Brewing Company of Indianapolis, and his family were subsequent owners of the home.