Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Adams/Wabash is an 'L' station serving the CTA's Brown, Green, Orange, Pink, and Purple Lines. Until 1963 it also served interurban trains of the Chicago North Shore and Milwaukee Railroad. It is the closet CTA station to Symphony Center, home of the Chicago Symphony Orchestra, and the Art Institute of Chicago. Chicago Transit Authority, also known as CTA, is the operator of mass transit within the City of Chicago, Illinois and some of its surrounding suburbs.