The Castle Marne is a Nationally and locally designated landmark building representing the new frontier of Denver homes and neighborhoods. Built in 1889 of Rhyolite (lavestone) form local quarries, the home Richardsonian Romanesque with Queen Anne overtones architecture is truly unique, not only in this country, but anywhere in the world. 9 guest rooms, all with private baths, and some have outdoor hottubs and indoor jacuzzis. The original stained glass windows are indicative of artistry long gone.