Milton, United States of America
Milton House is a historic building located at 18 South Janesville Street in Milton, Wisconsin. It was a stop on the Underground Railroad, a network of people and places that facilitated the movements of enslaved people seeking freedom. The building has been asserted to be the first grout building b
uilt in the United States; although that claim is dubious, the house's grout construction apparently was influential. The AIA Journal called it the "Oldest standing concrete structure of any consequence." It is also known for its hexagonal shape.
Listen to the audio guide for Milton House Museum Free on WIP — starts by itself when you arrive, even with the screen off