CHICAGO --Chicago is getting a new museum at an old landmark in the heart of downtown.On Wednesday, there was a sneak peak inside the Richard H. Driehaus Museum on Erie Street. The downtown mansion was built in the late 1800s. It houses art and architecture from the late 19th and early 20th centuries. Visitors will get to walk through the home, decorated with fine antique furniture. The museum makes its public debut June 1.