English: Hearthstone Castle in Danbury was built between 1895-1899. It was listed on the National Register of Historic Places in 1987. It has also been known as Parks' Castle and as The Castle. The property includes four contributing buildings and three other contributing structures. Today, the castle is owned by the City of Danbury and is located in Tarrywile Park. The Hearthstone Castle is closed to the public due to safety concerns.