The Green Turret is a cute little antique store in the turret of Mickey's Bar. Yes you have to go in the building and up the steps in the middle of the bar.
I find all the little treasures fascinating. Prices seem right too.
The big stack of maps is particularly intriguing.
To visit head to Mickey's Bar at 1524 Williamson St. in Madison. It is on the near Eastside by the Yahara River. As I said go in and up the stairs. The Green Turret is open Saturday and Sundays from 9 to 3 or 4. For more info visit their Facebook Page.
And they will be open Friday night for the Atwood Winnebago Winter Festival. Do stop in.