AttractionsTop things to doAttractionsRestaurantsActivitiesShoppingNightlifeEntertainmentHotelsTours▲ Museum in New CastleOld Court HouseBuilt in 1732, and now a state-operated museum, this was the first court and state capitol in Delaware. The state colonial assembly met here from 1732 until 1777. Open year-round. Museum in New CastleAmstel HouseOne of three museums overseen by the New Castle Historical Society, this house is a surviving remnant of 1730s colonial opulence. Guided tours available April through December. Museum in New CastleDutch HouseA small example of a working residence dating from the late 1600s. Tours offered at 1pm and 3pm.