Location: Camden, Maine
Price: $3.74 million This former carriage house—once part of the late-19th-century Norumbega Castle—was transformed into a modern home with exposed trusses, opposing fireplaces and a restored watchtower with views of Penobscot Bay. Agent: Kimberly Swan of the Swan Agency Sotheby's International Realty View the full listing.
Previously: A Modern Mansion Behind the Beverly Hills Hotel Write to Gina Faridniya at gina.faridniya@dowjones.com