There are a lot of fun and interesting things to do in Dubuque. Platteville is a college town so there are things to do there as well. This is by no means a comprehensive list either, so you may want to do your own research as well.
Potosi Point Recreational Area
221 South Main Street, Potosi, WI 53820
Potosi Brewery
209 South Main Street, Potosi, WI 53820
ABA National Brewery Museum
209 South Main Street, Potosi, WI 53820
Whispering Bluffs Winery
196 South Main Street, Potosi, WI 53820
Badger Hut Trails
4th Street, Potosi, WI 53820
Platte Mound M
18600 West Mound Road, Platteville, WI 53818
Belmont Mound State Park
18650 County Road G, Platteville, WI 53818
Dickeyville Grotto & Shrines
255-377 Great River Road, Dickeyville, WI 53808
Dubuque Arboretum & Botanical Gardens
3800 Arboretum Drive, Dubuque, IA 52001
National Mississippi River Museum & Aquarium
350 East 3rd Street, Dubuque, IA 52001
Zoe went here in college once. Its super cool! Highly recommend!