Amalgamated Center - Credit: Wikimedia Commons
The Amalgamated Center, also known as the Amalgamated Clothing Workers of America Office Building, was built by the Bethany Brotherhood, which was funded by John Wanamaker, in 1900, in Philadelphia. An addition to the building was added in 1912, and it served as a working class social club and community center. Read more on Wikipedia
Source: en.wikipedia.org