From City Hall to the Pabst Theater, reminders of the past are part of the fabric of Milwaukee. Yet many historic treasures have been lost to time.Blocks of homes and apartments replaced the Wonderland Amusement Park. A quiet bike path now stretches where some of fastest trains in the world previously thundered. Today's Estabrook Park was a vast mining operation, and Marquette University covers the old fairgrounds where Abraham Lincoln spoke. Author Carl Swanson recounts these stories and other tales of bygone days.