Middletown Historic District
Middletown was the center of wealth in the early days of Alton. The homes not only represent the prosperity of the community, but the wealth of families and their descendants that led Alton society for more than a century. Henry and East Twelfth Streets feature many of the larger and elaborate styled houses. Brick sidewalks and architectural styles connect a beautiful park with a Victorian playhouse and an area called Insuranceville.