Question: In which state of America will you find the Berlin Historic District which encompasses the ghost town of Berlin established as part of the Union Mining District and Berlin–Ichthyosaur State Park, a recreation area and historic preserve that protects ichthyosaur fossils and the ghost town?
Sentence (from "Chestnut Hill Reservation"): The reserve is part of the Chestnut Hill Reservoir Historic District, is listed on the National Register of Historic Places, and is a City of Boston Landmark.
Relevant evidence: No